This file contains the monthly mean baseline (background) methane (CH4) concentration measured at the Cape Grim Baseline Air Pollution Station (CGBAPS), located near the north-west tip of Tasmania, Australia. CGBAPS is funded and managed by the Australian Bureau of Meteorology, and the scientific program is jointly supervised with CSIRO Oceans & Atmosphere. Please acknowledge these two institutions if these data are used in publications or presentations. For more information on Cape Grim please see: http://www.csiro.au/greenhouse-gases/ https://www.csiro.au/en/Research/OandA/Areas/Assessing-our-climate/Greenhouse-gas-data http://www.bom.gov.au/inside/cgbaps/ The CH4 units are parts per billion in dry air (ppb). The most recent year of data is provided in this file on a provisional basis only. These data may be subject to further revision. CSIRO & the Bureau make every effort to produce the most accurate and precise measurements possible. However, they reserve the right to make corrections to the data based on recalibration of standard gases or for other reasons deemed scientifically justified. Please see the full terms & conditions at the end of this file. Release Date: April 2021 YYYY MM DD DATE CH4(ppb) SD(ppb) GR(ppm/yr) Source 1978 04 26 1978.3178 1479.00 0.70 NaN Cape Grim air archive 1978 07 07 1978.5151 1497.10 0.70 NaN Cape Grim air archive 1979 02 06 1979.1014 1495.10 1.80 NaN Cape Grim air archive 1980 09 03 1980.6749 1540.10 0.40 NaN Cape Grim air archive 1984 05 23 1984.3934 1590.90 0.50 NaN Cape Grim air archive 1984 08 15 1984.6202 1610.74 0.13 NaN flask 1984 09 15 1984.7049 1608.42 3.05 NaN flask 1984 10 15 1984.7869 1605.19 2.44 NaN flask 1984 11 15 1984.8716 1602.25 2.16 NaN flask 1984 12 15 1984.9536 1594.79 2.80 NaN flask 1985 01 15 1985.0384 1586.60 2.28 NaN flask 1985 02 15 1985.1233 1581.96 3.17 7.260 flask 1985 03 15 1985.2000 1582.70 3.02 11.178 flask 1985 04 15 1985.2849 1590.05 2.90 14.448 flask 1985 05 15 1985.3671 1597.99 1.97 13.126 flask 1985 06 15 1985.4521 1602.66 3.30 11.399 flask 1985 07 15 1985.5342 1610.46 4.32 13.555 flask 1985 08 15 1985.6192 1618.00 3.63 17.049 flask 1985 09 15 1985.7041 1619.60 1.88 17.189 flask 1985 10 15 1985.7863 1619.64 2.98 15.278 flask 1985 11 15 1985.8712 1615.37 3.17 14.764 flask 1985 12 15 1985.9534 1606.19 4.82 16.014 flask 1986 01 15 1986.0384 1600.16 1.76 15.644 flask 1986 02 15 1986.1233 1599.01 2.51 13.936 flask 1986 03 15 1986.2000 1599.89 2.65 13.909 flask 1986 04 15 1986.2849 1605.33 2.76 13.136 flask 1986 05 15 1986.3671 1612.76 2.80 14.168 flask 1986 06 15 1986.4521 1618.67 2.28 16.842 flask 1986 07 15 1986.5342 1626.11 3.22 15.055 flask 1986 08 15 1986.6192 1631.93 1.53 12.418 flask 1986 09 15 1986.7041 1633.51 1.57 12.762 flask 1986 10 15 1986.7863 1632.77 1.60 14.840 flask 1986 11 15 1986.8712 1629.54 2.28 16.259 flask 1986 12 15 1986.9534 1623.03 3.52 14.655 flask 1987 01 15 1987.0384 1615.21 2.51 13.307 flask 1987 02 15 1987.1233 1611.43 1.48 13.417 flask 1987 03 15 1987.2000 1612.65 1.90 13.107 flask 1987 04 15 1987.2849 1620.17 2.96 13.773 flask 1987 05 15 1987.3671 1629.02 4.09 14.301 flask 1987 06 15 1987.4521 1633.33 2.38 14.479 flask 1987 07 15 1987.5342 1639.41 3.12 14.511 flask 1987 08 15 1987.6192 1645.35 1.82 10.996 flask 1987 09 15 1987.7041 1646.61 1.53 9.982 flask 1987 10 15 1987.7863 1646.55 1.45 9.959 flask 1987 11 15 1987.8712 1643.84 3.89 7.939 flask 1987 12 15 1987.9534 1637.51 2.86 9.668 flask 1988 01 15 1988.0383 1629.73 3.12 10.607 flask 1988 02 15 1988.1230 1622.42 2.46 9.710 flask 1988 03 15 1988.2022 1622.63 3.40 11.425 flask 1988 04 15 1988.2869 1630.13 4.67 11.545 flask 1988 05 15 1988.3689 1636.95 2.62 8.174 flask 1988 06 15 1988.4536 1642.99 2.72 6.274 flask 1988 07 15 1988.5355 1650.02 2.07 11.819 flask 1988 08 15 1988.6202 1655.06 2.39 20.240 flask 1988 09 15 1988.7049 1658.04 2.07 17.903 flask 1988 10 15 1988.7869 1658.09 1.91 11.899 flask 1988 11 15 1988.8716 1652.02 3.91 12.849 flask 1988 12 15 1988.9536 1643.78 2.58 14.450 flask 1989 01 15 1989.0384 1641.55 2.93 13.906 flask 1989 02 15 1989.1233 1642.66 2.49 13.398 flask 1989 03 15 1989.2000 1640.53 2.16 11.339 flask 1989 04 15 1989.2849 1642.03 2.67 10.268 flask 1989 05 15 1989.3671 1649.80 4.12 12.559 flask 1989 06 15 1989.4521 1657.44 1.98 13.196 flask 1989 07 15 1989.5342 1663.93 2.73 7.111 flask 1989 08 15 1989.6192 1668.46 2.32 1.593 flask 1989 09 15 1989.7041 1669.38 1.95 4.857 flask 1989 10 15 1989.7863 1668.36 2.24 8.909 flask 1989 11 15 1989.8712 1664.58 2.57 9.437 flask 1989 12 15 1989.9534 1656.98 3.73 8.790 flask 1990 01 15 1990.0384 1648.66 2.54 7.175 flask 1990 02 15 1990.1233 1644.26 1.66 6.272 flask 1990 03 15 1990.2000 1645.39 1.65 7.077 flask 1990 04 15 1990.2849 1650.94 2.22 8.130 flask 1990 05 15 1990.3671 1659.24 2.96 9.237 flask 1990 06 15 1990.4521 1666.23 3.75 8.750 flask 1990 07 15 1990.5342 1671.10 2.02 7.042 flask 1990 08 15 1990.6192 1674.73 2.37 8.265 flask 1990 09 15 1990.7041 1676.46 2.46 9.057 flask 1990 10 15 1990.7863 1676.49 1.42 9.158 flask 1990 11 15 1990.8712 1673.81 2.19 10.132 flask 1990 12 15 1990.9534 1665.73 3.51 9.514 flask 1991 01 15 1991.0384 1655.70 2.49 10.027 flask 1991 02 15 1991.1233 1652.52 1.18 10.717 flask 1991 03 15 1991.2000 1654.45 1.54 12.080 flask 1991 04 15 1991.2849 1660.10 3.53 17.026 flask 1991 05 15 1991.3671 1669.37 4.70 16.670 flask 1991 06 15 1991.4521 1675.75 3.50 15.061 flask 1991 07 15 1991.5342 1681.13 2.33 19.134 flask 1991 08 15 1991.6192 1685.45 2.21 19.981 flask 1991 09 15 1991.7041 1688.54 2.04 18.561 flask 1991 10 15 1991.7863 1693.52 4.20 16.530 flask 1991 11 15 1991.8712 1690.48 3.13 13.233 flask 1991 12 15 1991.9534 1680.79 3.27 13.727 flask 1992 01 15 1992.0383 1674.83 3.00 14.766 flask 1992 02 15 1992.1230 1672.50 0.34 15.234 flask 1992 03 15 1992.2022 1673.01 1.72 13.591 flask 1992 04 15 1992.2869 1676.63 1.63 4.795 flask 1992 05 15 1992.3689 1682.61 2.38 2.090 flask 1992 06 15 1992.4536 1689.47 2.63 5.814 flask 1992 07 15 1992.5355 1695.89 2.55 1.969 flask 1992 08 15 1992.6202 1700.68 1.99 -1.178 flask 1992 09 15 1992.7049 1702.13 1.85 0.523 flask 1992 10 15 1992.7869 1698.31 2.36 2.604 flask 1992 11 15 1992.8716 1692.57 3.59 3.513 flask 1992 12 15 1992.9536 1686.60 2.68 2.243 flask 1993 01 15 1993.0384 1676.80 3.58 0.601 flask 1993 02 15 1993.1233 1671.32 1.62 0.387 flask 1993 03 15 1993.2000 1673.53 3.50 0.489 flask 1993 04 15 1993.2849 1679.23 2.61 2.780 flask 1993 05 15 1993.3671 1686.12 3.18 4.088 flask 1993 06 15 1993.4521 1691.72 1.73 3.234 flask 1993 07 15 1993.5342 1696.49 4.40 4.885 flask 1993 08 15 1993.6192 1701.07 1.82 4.746 flask 1993 09 15 1993.7041 1702.62 0.22 2.538 flask 1993 10 15 1993.7863 1701.09 2.34 2.212 flask 1993 11 15 1993.8712 1696.66 2.10 3.780 flask 1993 12 15 1993.9534 1689.84 2.91 5.613 flask 1994 01 15 1994.0384 1681.69 2.38 6.709 flask 1994 02 15 1994.1233 1676.07 2.46 5.669 flask 1994 03 15 1994.2000 1676.07 2.34 4.502 flask 1994 04 15 1994.2849 1681.44 3.20 6.877 flask 1994 05 15 1994.3671 1689.90 3.79 8.204 flask 1994 06 15 1994.4521 1697.33 3.14 7.086 flask 1994 07 15 1994.5342 1703.20 2.97 8.154 flask 1994 08 15 1994.6192 1706.74 2.53 9.424 flask 1994 09 15 1994.7041 1707.12 2.58 8.315 flask 1994 10 15 1994.7863 1707.97 1.28 6.603 flask 1994 11 15 1994.8712 1704.86 2.77 5.153 flask 1994 12 15 1994.9534 1696.92 3.31 3.789 flask 1995 01 15 1995.0384 1689.84 2.58 2.783 flask 1995 02 15 1995.1233 1685.49 1.13 4.804 flask 1995 03 15 1995.2000 1684.38 2.03 7.572 flask 1995 04 15 1995.2849 1688.05 2.03 5.540 flask 1995 05 15 1995.3671 1695.05 3.31 5.217 flask 1995 06 15 1995.4521 1701.12 3.32 5.977 flask 1995 07 15 1995.5342 1705.99 2.19 3.464 flask 1995 08 15 1995.6192 1711.54 2.09 1.203 flask 1995 09 15 1995.7041 1714.69 1.91 0.352 flask 1995 10 15 1995.7863 1713.51 2.42 1.822 flask 1995 11 15 1995.8712 1710.08 2.29 3.158 flask 1995 12 15 1995.9534 1702.90 3.47 2.547 flask 1996 01 15 1996.0383 1693.30 3.41 2.918 flask 1996 02 15 1996.1230 1686.70 2.50 2.981 flask 1996 03 15 1996.2022 1684.74 3.23 1.897 flask 1996 04 15 1996.2869 1689.87 3.08 1.302 flask 1996 05 15 1996.3689 1698.21 3.01 -0.216 flask 1996 06 15 1996.4536 1703.67 2.79 -0.580 flask 1996 07 15 1996.5355 1708.91 2.48 1.207 flask 1996 08 15 1996.6202 1714.52 2.66 4.599 flask 1996 09 15 1996.7049 1716.59 2.15 10.347 flask 1996 10 15 1996.7869 1714.81 2.07 10.071 flask 1996 11 15 1996.8716 1709.87 2.76 7.193 flask 1996 12 15 1996.9536 1702.32 3.11 8.745 flask 1997 01 15 1997.0384 1694.51 2.56 8.723 flask 1997 02 15 1997.1233 1691.30 1.67 7.732 flask 1997 03 15 1997.2000 1695.08 3.09 6.679 flask 1997 04 15 1997.2849 1699.94 2.73 5.552 flask 1997 05 15 1997.3671 1705.40 2.94 6.053 flask 1997 06 15 1997.4521 1712.41 2.02 8.732 flask 1997 07 15 1997.5342 1717.63 2.08 10.092 flask 1997 08 15 1997.6192 1722.25 1.84 7.716 flask 1997 09 15 1997.7041 1723.27 1.69 2.533 flask 1997 10 15 1997.7863 1720.36 2.17 0.985 flask 1997 11 15 1997.8712 1715.92 2.05 4.354 flask 1997 12 15 1997.9534 1711.05 2.33 6.257 flask 1998 01 15 1998.0384 1704.60 2.64 6.414 flask 1998 02 15 1998.1233 1699.01 1.82 6.857 flask 1998 03 15 1998.2000 1697.62 2.26 9.606 flask 1998 04 15 1998.2849 1700.92 2.96 12.250 flask 1998 05 15 1998.3671 1709.76 4.18 12.140 flask 1998 06 15 1998.4521 1718.67 2.42 9.779 flask 1998 07 15 1998.5342 1724.04 3.21 9.472 flask 1998 08 15 1998.6192 1729.11 1.77 10.805 flask 1998 09 15 1998.7041 1732.87 1.93 11.827 flask 1998 10 15 1998.7863 1732.61 1.10 13.480 flask 1998 11 15 1998.8712 1728.06 3.39 12.659 flask 1998 12 15 1998.9534 1720.83 3.03 11.409 flask 1999 01 15 1999.0384 1714.07 2.08 11.820 flask 1999 02 15 1999.1233 1709.82 1.93 9.972 flask 1999 03 15 1999.2000 1709.44 1.99 8.134 flask 1999 04 15 1999.2849 1714.40 2.66 8.680 flask 1999 05 15 1999.3671 1722.42 3.40 7.700 flask 1999 06 15 1999.4521 1730.08 2.69 5.675 flask 1999 07 15 1999.5342 1735.86 2.58 3.765 flask 1999 08 15 1999.6192 1739.08 2.09 2.112 flask 1999 09 15 1999.7041 1741.01 1.44 2.410 flask 1999 10 15 1999.7863 1741.29 1.93 3.498 flask 1999 11 15 1999.8712 1735.76 3.15 2.513 flask 1999 12 15 1999.9534 1726.51 3.25 2.044 flask 2000 01 15 2000.0383 1717.84 3.04 2.029 flask 2000 02 15 2000.1230 1711.93 1.92 0.745 flask 2000 03 15 2000.2022 1711.85 1.94 -0.386 flask 2000 04 15 2000.2869 1717.90 3.77 -1.096 flask 2000 05 15 2000.3689 1724.93 3.16 -0.260 flask 2000 06 15 2000.4536 1732.12 2.67 0.256 flask 2000 07 15 2000.5355 1737.89 2.54 -1.000 flask 2000 08 15 2000.6202 1739.83 1.51 -1.465 flask 2000 09 15 2000.7049 1740.62 1.76 -1.263 flask 2000 10 15 2000.7869 1740.19 1.70 -2.643 flask 2000 11 15 2000.8716 1735.50 3.92 -1.896 flask 2000 12 15 2000.9536 1726.76 3.67 -0.883 flask 2001 01 15 2001.0384 1716.84 3.03 -0.858 flask 2001 02 15 2001.1233 1710.46 1.46 0.314 flask 2001 03 15 2001.2000 1710.59 1.99 0.730 flask 2001 04 15 2001.2849 1715.26 2.25 -1.365 flask 2001 05 15 2001.3671 1723.03 2.68 -3.316 flask 2001 06 15 2001.4521 1731.24 3.20 -2.581 flask 2001 07 15 2001.5342 1737.03 1.67 -1.311 flask 2001 08 15 2001.6192 1740.14 1.86 0.769 flask 2001 09 15 2001.7041 1741.35 1.70 1.839 flask 2001 10 15 2001.7863 1738.83 2.27 2.049 flask 2001 11 15 2001.8712 1732.18 3.52 1.862 flask 2001 12 15 2001.9534 1724.18 3.92 1.533 flask 2002 01 15 2002.0384 1715.53 2.40 1.591 flask 2002 02 15 2002.1233 1711.23 1.04 1.700 flask 2002 03 15 2002.2000 1712.43 2.57 1.573 flask 2002 04 15 2002.2849 1717.31 2.03 2.933 flask 2002 05 15 2002.3671 1724.90 2.94 5.038 flask 2002 06 15 2002.4521 1732.77 2.96 4.504 flask 2002 07 15 2002.5342 1738.62 1.96 3.486 flask 2002 08 15 2002.6192 1741.84 2.19 1.671 flask 2002 09 15 2002.7041 1742.92 0.77 0.041 flask 2002 10 15 2002.7863 1741.76 1.74 1.066 flask 2002 11 15 2002.8712 1737.22 2.32 1.749 flask 2002 12 15 2002.9534 1728.69 3.39 -0.262 flask 2003 01 15 2003.0384 1719.02 2.73 -1.624 flask 2003 02 15 2003.1233 1712.90 1.62 -0.079 flask 2003 03 15 2003.2000 1712.47 1.87 1.616 flask 2003 04 15 2003.2849 1718.37 2.60 0.435 flask 2003 05 15 2003.3671 1726.64 2.60 -1.338 flask 2003 06 15 2003.4521 1732.51 2.96 0.614 flask 2003 07 15 2003.5342 1737.00 1.75 1.868 flask 2003 08 15 2003.6192 1741.76 1.62 0.251 flask 2003 09 15 2003.7041 1744.54 1.65 -1.510 flask 2003 10 15 2003.7863 1742.20 2.17 -1.932 flask 2003 11 15 2003.8712 1735.88 2.93 -1.397 flask 2003 12 15 2003.9534 1729.30 3.06 -0.590 flask 2004 01 15 2004.0383 1720.88 2.83 1.413 flask 2004 02 15 2004.1230 1713.15 2.22 1.418 flask 2004 03 15 2004.2022 1710.96 2.77 -1.133 flask 2004 04 15 2004.2869 1716.44 3.31 -1.081 flask 2004 05 15 2004.3689 1725.25 3.03 -0.935 flask 2004 06 15 2004.4536 1731.92 2.83 -2.970 flask 2004 07 15 2004.5355 1738.41 2.74 -3.385 flask 2004 08 15 2004.6202 1743.18 2.06 -1.580 flask 2004 09 15 2004.7049 1743.41 1.92 0.813 flask 2004 10 15 2004.7869 1741.12 1.87 0.744 flask 2004 11 15 2004.8716 1734.95 2.79 0.190 flask 2004 12 15 2004.9536 1726.33 3.83 -0.747 flask 2005 01 15 2005.0384 1717.50 2.90 -3.261 flask 2005 02 15 2005.1233 1711.57 1.91 -2.723 flask 2005 03 15 2005.2000 1711.77 3.18 -1.350 flask 2005 04 15 2005.2849 1717.19 2.17 -0.831 flask 2005 05 15 2005.3671 1725.44 3.95 1.127 flask 2005 06 15 2005.4521 1731.17 1.31 1.878 flask 2005 07 15 2005.5342 1735.15 3.39 1.032 flask 2005 08 15 2005.6192 1740.46 1.92 0.463 flask 2005 09 15 2005.7041 1742.06 0.92 0.342 flask 2005 10 15 2005.7863 1740.29 3.70 0.057 flask 2005 11 15 2005.8712 1736.07 1.75 -2.116 flask 2005 12 15 2005.9534 1728.21 3.28 -1.490 flask 2006 01 15 2006.0384 1718.53 4.41 -0.342 flask 2006 02 15 2006.1233 1712.04 3.54 -2.501 flask 2006 03 15 2006.2000 1712.11 2.47 -1.635 flask 2006 04 15 2006.2849 1717.24 2.28 -0.237 flask 2006 05 15 2006.3671 1723.32 3.29 -0.282 flask 2006 06 15 2006.4521 1729.68 2.09 -0.296 flask 2006 07 15 2006.5342 1734.81 3.95 -0.414 flask 2006 08 15 2006.6192 1737.96 2.85 0.670 flask 2006 09 15 2006.7041 1740.42 1.75 1.918 flask 2006 10 15 2006.7863 1740.05 2.32 2.751 flask 2006 11 15 2006.8712 1735.79 3.88 4.653 flask 2006 12 15 2006.9534 1727.91 2.99 6.608 flask 2007 01 15 2007.0384 1718.12 2.66 7.577 flask 2007 02 15 2007.1233 1712.71 1.85 7.680 flask 2007 03 15 2007.2000 1714.03 2.26 8.143 flask 2007 04 15 2007.2849 1719.99 2.13 8.649 flask 2007 05 15 2007.3671 1727.97 3.02 8.271 flask 2007 06 15 2007.4521 1736.29 3.10 8.820 flask 2007 07 15 2007.5342 1742.39 2.53 11.095 flask 2007 08 15 2007.6192 1745.64 1.67 11.798 flask 2007 09 15 2007.7041 1748.56 2.00 11.997 flask 2007 10 15 2007.7863 1748.70 1.71 12.749 flask 2007 11 15 2007.8712 1744.06 2.29 10.107 flask 2007 12 15 2007.9534 1736.73 2.56 6.179 flask 2008 01 15 2008.0383 1729.21 2.78 7.942 flask 2008 02 15 2008.1230 1724.51 1.98 10.326 flask 2008 03 15 2008.2022 1726.03 3.46 7.356 flask 2008 04 15 2008.2869 1732.74 4.11 5.771 flask 2008 05 15 2008.3689 1738.08 1.71 5.112 flask 2008 06 15 2008.4536 1742.47 2.89 2.115 flask 2008 07 15 2008.5355 1750.33 3.36 1.097 flask 2008 08 15 2008.6202 1755.96 1.48 1.611 flask 2008 09 15 2008.7049 1755.92 2.23 0.668 flask 2008 10 15 2008.7869 1754.47 2.41 -0.626 flask 2008 11 15 2008.8716 1749.18 3.94 0.767 flask 2008 12 15 2008.9536 1738.85 3.59 3.499 flask 2009 01 15 2009.0384 1730.31 3.83 2.452 flask 2009 02 15 2009.1233 1726.12 0.65 2.231 flask 2009 03 15 2009.2000 1726.70 2.10 4.356 flask 2009 04 15 2009.2849 1732.12 2.39 4.501 flask 2009 05 15 2009.3671 1738.85 3.84 4.436 flask 2009 06 15 2009.4521 1745.97 4.17 4.549 flask 2009 07 15 2009.5342 1752.78 2.61 4.996 flask 2009 08 15 2009.6192 1758.19 1.64 5.925 flask 2009 09 15 2009.7041 1760.28 1.60 5.643 flask 2009 10 15 2009.7863 1758.97 1.64 4.392 flask 2009 11 15 2009.8712 1753.61 2.87 3.415 flask 2009 12 15 2009.9534 1743.40 3.68 5.778 flask 2010 01 15 2010.0384 1735.30 2.36 9.242 flask 2010 02 15 2010.1233 1732.04 1.13 7.701 flask 2010 03 15 2010.2000 1732.34 2.33 5.780 flask 2010 04 15 2010.2849 1736.51 1.56 6.367 flask 2010 05 15 2010.3671 1742.26 2.35 8.159 flask 2010 06 15 2010.4521 1751.75 3.93 11.022 flask 2010 07 15 2010.5342 1762.02 3.03 9.777 flask 2010 08 15 2010.6192 1765.90 1.41 7.749 flask 2010 09 15 2010.7041 1766.06 1.40 10.153 flask 2010 10 15 2010.7863 1765.34 1.11 13.231 flask 2010 11 15 2010.8712 1761.77 1.69 11.386 flask 2010 12 15 2010.9534 1754.42 3.40 6.449 flask 2011 01 15 2011.0384 1745.08 3.34 3.197 flask 2011 02 15 2011.1233 1739.79 1.01 4.407 flask 2011 03 15 2011.2000 1742.49 2.22 6.963 flask 2011 04 15 2011.2849 1749.74 1.79 7.026 flask 2011 05 15 2011.3671 1753.65 4.14 5.164 flask 2011 06 15 2011.4521 1758.20 2.26 3.468 flask 2011 07 15 2011.5342 1765.22 2.80 4.159 flask 2011 08 15 2011.6192 1770.30 1.27 4.218 flask 2011 09 15 2011.7041 1773.02 1.24 1.310 flask 2011 10 15 2011.7863 1772.36 1.41 0.201 flask 2011 11 15 2011.8712 1766.94 2.59 3.782 flask 2011 12 15 2011.9534 1757.89 2.87 5.626 flask 2012 01 15 2012.0383 1749.24 2.26 5.096 flask 2012 02 15 2012.1230 1744.01 2.08 5.231 flask 2012 03 15 2012.2022 1743.80 1.79 4.968 flask 2012 04 15 2012.2869 1749.94 2.71 4.117 flask 2012 05 15 2012.3689 1757.43 2.12 5.094 flask 2012 06 15 2012.4536 1763.82 2.09 5.812 flask 2012 07 15 2012.5355 1770.32 2.43 3.307 flask 2012 08 15 2012.6202 1775.53 1.75 3.346 flask 2012 09 15 2012.7049 1777.99 1.32 4.647 flask 2012 10 15 2012.7869 1776.48 1.37 3.245 flask 2012 11 15 2012.8716 1772.03 2.05 4.042 flask 2012 12 15 2012.9536 1763.70 3.37 6.136 flask 2013 01 15 2013.0384 1752.55 2.72 4.778 in situ 2013 02 15 2013.1233 1747.35 0.87 3.776 in situ 2013 03 15 2013.2000 1748.45 1.22 3.783 in situ 2013 04 15 2013.2849 1753.19 2.02 3.315 in situ 2013 05 15 2013.3671 1761.47 2.95 2.045 in situ 2013 06 15 2013.4521 1769.96 2.11 2.077 in situ 2013 07 15 2013.5342 1775.09 1.41 3.969 in situ 2013 08 15 2013.6192 1779.31 1.32 4.664 in situ 2013 09 15 2013.7041 1781.77 0.57 6.205 in situ 2013 10 15 2013.7863 1779.80 1.38 7.801 in situ 2013 11 15 2013.8712 1774.07 2.16 7.804 in situ 2013 12 15 2013.9534 1765.78 2.86 9.326 in situ 2014 01 15 2014.0384 1756.52 2.46 12.109 in situ 2014 02 15 2014.1233 1752.02 0.74 12.008 in situ 2014 03 15 2014.2000 1754.66 1.74 10.869 in situ 2014 04 15 2014.2849 1760.99 2.19 11.585 in situ 2014 05 15 2014.3671 1769.28 2.93 12.778 in situ 2014 06 15 2014.4521 1779.28 2.96 13.393 in situ 2014 07 15 2014.5342 1787.20 1.89 13.827 in situ 2014 08 15 2014.6192 1791.32 1.04 13.437 in situ 2014 09 15 2014.7041 1792.64 0.43 12.682 in situ 2014 10 15 2014.7863 1791.38 0.98 12.673 in situ 2014 11 15 2014.8712 1786.85 1.90 11.803 in situ 2014 12 15 2014.9534 1779.17 2.70 9.628 in situ 2015 01 15 2015.0384 1770.34 2.41 8.637 in situ 2015 02 15 2015.1233 1765.45 0.75 9.178 in situ 2015 03 15 2015.2000 1767.34 1.61 9.774 in situ 2015 04 15 2015.2849 1773.66 2.21 9.851 in situ 2015 05 15 2015.3671 1781.08 2.40 9.617 in situ 2015 06 15 2015.4521 1788.91 2.35 9.247 in situ 2015 07 15 2015.5342 1795.84 1.96 8.798 in situ 2015 08 15 2015.6192 1800.49 1.25 8.461 in situ 2015 09 15 2015.7041 1802.41 0.61 8.011 in situ 2015 10 15 2015.7863 1801.23 0.99 6.723 in situ 2015 11 15 2015.8712 1796.47 2.04 6.374 in situ 2015 12 15 2015.9534 1788.42 2.87 7.036 in situ 2016 01 15 2016.0383 1779.14 2.56 6.115 in situ 2016 02 15 2016.1229 1773.92 0.86 4.695 in situ 2016 03 15 2016.2022 1775.35 1.46 4.584 in situ 2016 04 15 2016.2869 1780.38 1.87 4.266 in situ 2016 05 15 2016.3689 1787.45 2.57 2.715 in situ 2016 06 15 2016.4536 1795.95 2.39 1.278 in situ 2016 07 15 2016.5355 1801.95 1.46 1.323 in situ 2016 08 15 2016.6202 1805.19 0.94 2.257 in situ 2016 09 15 2016.7049 1807.00 0.69 2.151 in situ 2016 10 15 2016.7869 1805.50 1.28 2.595 in situ 2016 11 15 2016.8716 1799.18 2.54 4.895 in situ 2016 12 15 2016.9536 1789.69 3.12 6.482 in situ 2017 01 15 2017.0384 1780.46 2.35 7.781 in situ 2017 02 15 2017.1233 1776.17 0.71 9.611 in situ 2017 03 15 2017.2000 1777.50 1.28 9.988 in situ 2017 04 15 2017.2849 1782.98 2.30 10.052 in situ 2017 05 15 2017.3671 1792.35 3.27 11.426 in situ 2017 06 15 2017.4521 1802.43 2.71 12.712 in situ 2017 07 15 2017.5342 1809.74 1.92 13.075 in situ 2017 08 15 2017.6192 1814.80 1.26 12.953 in situ 2017 09 15 2017.7041 1816.98 0.53 13.480 in situ 2017 10 15 2017.7863 1815.55 1.27 15.021 in situ 2017 11 15 2017.8712 1810.61 2.09 14.483 in situ 2017 12 15 2017.9534 1802.41 2.85 12.206 in situ 2018 01 15 2018.0384 1793.54 2.32 11.513 in situ 2018 02 15 2018.1233 1789.13 0.72 11.652 in situ 2018 03 15 2018.2000 1790.98 1.60 11.803 in situ 2018 04 15 2018.2849 1798.00 2.59 11.576 in situ 2018 05 15 2018.3671 1806.83 2.69 10.090 in situ 2018 06 15 2018.4521 1814.64 2.15 8.707 in situ 2018 07 15 2018.5342 1821.25 1.95 8.644 in situ 2018 08 15 2018.6192 1826.45 1.31 8.809 in situ 2018 09 15 2018.7041 1828.79 0.55 7.771 in situ 2018 10 15 2018.7863 1827.13 1.31 5.556 in situ 2018 11 15 2018.8712 1820.70 2.58 4.187 in situ 2018 12 15 2018.9534 1811.11 3.06 4.460 in situ 2019 01 15 2019.0384 1802.18 2.21 4.816 in situ 2019 02 15 2019.1233 1797.94 0.70 4.765 in situ 2019 03 15 2019.2000 1798.75 1.15 4.524 in situ 2019 04 15 2019.2849 1803.55 1.98 4.685 in situ 2019 05 15 2019.3671 1811.02 2.56 5.752 in situ 2019 06 15 2019.4521 1819.10 2.36 6.364 in situ 2019 07 15 2019.5342 1826.06 1.95 5.867 in situ 2019 08 15 2019.6192 1831.22 1.27 5.323 in situ 2019 09 15 2019.7041 1833.31 0.43 5.858 in situ 2019 10 15 2019.7863 1831.81 1.15 6.176 in situ 2019 11 15 2019.8712 1826.45 2.28 6.087 in situ 2019 12 15 2019.9534 1817.48 3.07 7.017 in situ 2020 01 15 2020.0383 1808.05 2.46 8.127 in situ 2020 02 15 2020.1229 1803.26 0.81 8.646 in situ 2020 03 15 2020.2022 1804.61 1.28 9.264 in situ 2020 04 15 2020.2869 1809.73 1.91 10.172 in situ 2020 05 15 2020.3689 1817.11 2.66 11.654 in situ 2020 06 15 2020.4536 1826.11 2.74 12.858 in situ 2020 07 15 2020.5355 1834.19 2.16 12.974 in situ 2020 08 15 2020.6202 1839.86 1.38 13.931 in situ 2020 09 15 2020.7049 1842.58 0.60 15.986 in situ 2020 10 15 2020.7869 1841.98 0.89 NaN in situ 2020 11 15 2020.8716 1838.11 1.75 NaN in situ 2020 12 15 2020.9536 1830.33 2.95 NaN in situ 2021 01 15 2021.0384 1821.02 2.40 NaN in situ 2021 02 15 2021.1233 1817.19 0.65 NaN in situ 2021 03 15 2021.2000 1820.59 1.83 NaN in situ Terms of 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