# year month value 1950 1 23.33551 1950 2 70.95313 1950 3 37.88352 1950 4 143.5296 1950 5 93.53471 1950 6 37.17232 1950 7 7.247448 1950 8 28.05758 1950 9 65.80138 1950 10 24.46175 1950 11 54.54159 1950 12 98.54198 1951 1 81.82263 1951 2 110.0972 1951 3 111.2101 1951 4 38.42568 1951 5 174.8791 1951 6 81.14696 1951 7 62.81805 1951 8 94.97118 1951 9 78.95088 1951 10 129.6709 1951 11 215.198 1951 12 11.50537 1952 1 18.16177 1952 2 8.908749 1952 3 32.95755 1952 4 106.9822 1952 5 68.03059 1952 6 30.5233 1952 7 23.43655 1952 8 41.51177 1952 9 32.73964 1952 10 39.49118 1952 11 47.92833 1952 12 31.76999 1953 1 26.14808 1953 2 10.47111 1953 3 18.17632 1953 4 127.3491 1953 5 74.98241 1953 6 201.4101 1953 7 61.49673 1953 8 47.33801 1953 9 96.30156 1953 10 250.5169 1953 11 20.36953 1953 12 66.69926 1954 1 65.12809 1954 2 60.02116 1954 3 139.9798 1954 4 103.9031 1954 5 154.773 1954 6 128.6817 1954 7 64.94975 1954 8 113.0571 1954 9 25.1832 1954 10 22.00246 1954 11 67.44385 1954 12 67.19875 1955 1 125.3293 1955 2 101.8386 1955 3 61.65314 1955 4 21.46983 1955 5 27.74668 1955 6 41.57662 1955 7 45.55655 1955 8 32.45974 1955 9 63.61055 1955 10 78.74298 1955 11 57.71446 1955 12 25.14935 1956 1 31.52108 1956 2 40.694 1956 3 172.2448 1956 4 169.5664 1956 5 70.13011 1956 6 47.37854 1956 7 82.83615 1956 8 44.83032 1956 9 108.3629 1956 10 55.96256 1956 11 128.252 1956 12 14.90116 1957 1 29.48356 1957 2 65.07015 1957 3 57.271 1957 4 138.6507 1957 5 225.4298 1957 6 212.6227 1957 7 19.00387 1957 8 40.28535 1957 9 17.32397 1957 10 37.6823 1957 11 182.8163 1957 12 104.31 1958 1 21.82174 1958 2 32.6786 1958 3 40.50755 1958 4 147.748 1958 5 41.49771 1958 6 75.63638 1958 7 83.57525 1958 8 55.69625 1958 9 46.6373 1958 10 50.25101 1958 11 170.1636 1958 12 105.2763 1959 1 15.68627 1959 2 64.3506 1959 3 149.3232 1959 4 169.3969 1959 5 167.1133 1959 6 59.34429 1959 7 50.96054 1959 8 84.24664 1959 9 104.3377 1959 10 135.1633 1959 11 144.2289 1959 12 176.2784 1960 1 58.79712 1960 2 52.8543 1960 3 165.0331 1960 4 123.2262 1960 5 47.9567 1960 6 87.19039 1960 7 55.00198 1960 8 35.18939 1960 9 143.3358 1960 10 217.1788 1960 11 94.74206 1960 12 157.357 1961 1 51.61715 1961 2 22.48859 1961 3 2.578735 1961 4 165.6561 1961 5 77.2028 1961 6 91.85815 1961 7 30.49302 1961 8 9.022474 1961 9 25.04396 1961 10 97.30625 1961 11 200.4616 1961 12 23.72694 1962 1 36.05866 1962 2 60.15873 1962 3 55.1126 1962 4 133.4557 1962 5 52.45471 1962 6 76.84326 1962 7 29.97351 1962 8 12.45356 1962 9 13.66353 1962 10 88.36436 1962 11 278.2977 1962 12 38.01418 1963 1 57.70325 1963 2 51.6212 1963 3 119.6926 1963 4 226.6629 1963 5 118.6137 1963 6 163.1751 1963 7 50.65417 1963 8 69.65494 1963 9 130.2876 1963 10 75.04034 1963 11 107.3318 1963 12 51.06544 1964 1 13.99875 1964 2 99.78795 1964 3 161.6809 1964 4 117.8975 1964 5 77.31271 1964 6 79.82159 1964 7 23.57411 1964 8 36.3369 1964 9 11.74569 1964 10 117.4753 1964 11 50.98367 1964 12 84.99503 1965 1 28.26858 1965 2 10.76412 1965 3 65.65141 1965 4 16.33549 1965 5 76.53332 1965 6 37.82463 1965 7 58.70033 1965 8 76.07198 1965 9 140.5509 1965 10 51.26429 1965 11 61.28955 1965 12 21.02613 1966 1 17.00068 1966 2 172.1055 1966 3 27.17805 1966 4 132.1063 1966 5 65.46044 1966 6 35.62593 1966 7 109.2589 1966 8 133.8246 1966 9 134.9516 1966 10 233.5498 1966 11 76.16353 1966 12 12.69245 1967 1 10.38456 1967 2 60.1964 1967 3 42.4006 1967 4 56.01597 1967 5 84.98264 1967 6 80.86443 1967 7 69.25011 1967 8 66.3538 1967 9 81.28976 1967 10 25.01154 1967 11 75.61827 1967 12 47.18232 1968 2 69.22006 1968 3 33.60939 1968 4 88.871 1968 5 155.7057 1968 6 75.56487 1968 7 81.73466 1968 8 115.1662 1968 9 65.42754 1968 10 58.8448 1968 11 239.728 1968 12 104.4188 1969 1 57.46484 1969 2 76.39527 1969 3 133.0576 1969 4 132.1814 1969 5 181.5286 1969 6 97.37134 1969 7 70.06311 1969 8 46.43965 1969 9 93.87875 1969 10 7.207632 1969 11 49.70908 1969 12 30.13611 1970 1 97.59331 1970 2 38.73587 1970 3 78.70531 1970 4 34.63888 1970 5 97.0974 1970 6 117.3825 1970 7 18.90683 1970 8 44.47937 1970 9 36.75652 1970 10 112.8905 1970 11 57.03163 1970 12 83.83632 1971 1 102.2105 1971 2 46.9315 1971 3 155.0841 1971 4 123.0068 1971 5 192.6906 1971 6 130.9409 1971 7 96.08364 1971 8 60.47511 1971 9 25.9726 1971 10 13.81826 1971 11 159.7819 1971 12 75.23727 1972 1 151.3426 1972 2 332.9301 1972 3 167.6111 1972 4 139.9126 1972 5 75.35672 1972 6 134.9306 1972 7 75.95444 1972 8 141.0992 1972 9 175.971 1972 10 91.82381 1972 11 35.68268 1972 12 97.36395 1973 1 115.3107 1973 2 13.1402 1973 3 37.79578 1973 4 60.68969 1973 5 90.9729 1973 6 156.3697 1973 7 92.49759 1973 8 51.06401 1973 9 126.5578 1973 10 89.06197 1973 11 9.214401 1973 12 145.0923 1974 1 88.49502 1974 2 244.9117 1974 3 171.931 1974 4 174.6283 1974 5 79.77128 1974 6 74.30672 1974 7 33.78391 1974 8 41.0192 1974 9 52.67834 1974 10 12.52222 1974 11 75.83881 1974 12 5.499601 1975 1 76.28322 1975 2 61.94711 1975 3 234.1671 1975 4 34.63221 1975 5 247.5395 1975 6 128.3455 1975 7 25.34533 1975 8 66.30039 1975 9 115.5801 1975 10 99.81322 1975 11 186.5084 1975 12 66.93649 1976 1 16.82758 1976 2 115.7465 1976 3 52.15359 1976 4 114.1946 1976 5 102.4792 1976 6 44.81173 1976 8 136.2684 1976 9 136.0259 1976 10 428.5026 1976 11 175.7503 1976 12 44.60025 1977 1 118.1359 1977 2 49.07584 1977 3 170.521 1977 4 100.1334 1977 5 289.1028 1977 6 90.42621 1977 7 172.3404 1977 8 186.6298 1977 9 32.40728 1977 10 245.9793 1977 11 23.33045 1977 12 75.39845 1978 1 229.6798 1978 2 99.18904 1978 3 92.1762 1978 4 164.0728 1978 5 182.5068 1978 6 70.79387 1978 7 44.43741 1978 8 114.8059 1978 9 9.38797 1978 10 94.94066 1978 11 17.96675 1978 12 95.94917 1979 1 39.93187 1979 2 116.7808 1979 3 125.5202 1979 4 81.13503 1979 5 36.51142 1979 6 50.99034 1979 7 63.15994 1979 8 124.2785 1979 9 67.41333 1979 10 221.3724 1979 11 34.54995 1979 12 125.6189 1980 1 100.2462 1980 2 14.81652 1980 3 160.0771 1980 4 25.14839 1980 5 130.26 1980 6 120.672 1980 7 56.76865 1980 8 101.2907 1980 9 11.67154 1980 10 88.51719 1980 11 76.78413 1980 12 5.845308 1981 1 20.18189 1981 2 24.05429 1981 3 176.8646 1981 4 140.5208 1981 5 159.3857 1981 6 79.69237 1981 7 66.55288 1981 8 56.9408 1981 9 248.9295 1981 10 78.66264 1981 11 7.827997 1981 12 106.7054 1982 1 19.52028 1982 2 61.49364 1982 3 71.67077 1982 4 86.23743 1982 5 44.19112 1982 6 41.33248 1982 7 73.41194 1982 8 98.9933 1982 9 91.85075 1982 10 158.1857 1982 11 210.9265 1982 12 82.0899 1983 1 3.395319 1983 2 37.71877 1983 3 136.5781 1983 4 156.4753 1983 5 145.4167 1983 6 130.1513 1983 7 13.78489 1983 8 76.21384 1983 9 31.41952 1983 10 43.71214 1983 11 24.6675 1983 12 69.12469 1984 1 24.70088 1984 2 89.12754 1984 3 61.75947 1984 4 92.5467 1984 5 297.4084 1984 6 90.22117 1984 7 8.934021 1984 8 142.7441 1984 9 85.44684 1984 10 86.27748 1984 11 81.50124 1984 12 60.25887 1985 1 57.79886 1985 2 15.13052 1985 3 158.4213 1985 4 30.96008 1985 5 203.0602 1985 6 61.32841 1985 7 42.62352 1985 8 61.79833 1985 9 42.12141 1985 10 37.89854 1985 11 84.2731 1985 12 29.52671 1986 1 149.1752 1986 2 66.45393 1986 3 66.67519 1986 4 306.6948 1986 5 92.79275 1986 6 77.80457 1986 7 59.62491 1986 8 51.14508 1986 9 48.5704 1986 10 14.47105 1986 11 43.83445 1986 12 16.49284 1987 1 96.14397 1987 2 110.9591 1987 3 25.59638 1987 4 98.10162 1987 5 45.96734 1987 6 55.14002 1987 7 62.94418 1987 8 110.003 1987 9 20.46251 1987 10 216.9147 1987 11 116.0002 1987 12 63.57479 1988 1 70.14656 1988 2 14.39571 1988 3 81.23898 1988 4 129.6871 1988 5 190.5804 1988 6 132.9288 1988 7 47.64342 1988 8 66.17284 1988 9 23.37742 1988 10 203.6514 1988 11 17.07792 1988 12 57.03521 1989 1 7.490396 1989 2 27.03714 1989 3 17.85493 1989 4 314.8508 1989 5 26.64876 1989 6 47.21523 1989 7 57.41358 1989 8 26.81923 1989 9 45.57252 1989 10 12.19559 1989 11 37.21905 1989 12 24.7674 1990 1 11.56116 1990 2 38.67698 1990 3 42.18769 1990 4 165.2684 1990 5 119.812 1990 6 68.68935 1990 7 25.5971 1990 8 50.98534 1990 9 11.168 1990 10 203.0354 1990 11 41.7881 1990 12 70.02115 1991 1 58.47192 1991 2 31.46172 1991 3 216.9738 1991 4 82.72028 1991 5 133.2412 1991 6 37.83321 1991 7 19.03534 1991 8 32.49121 1991 9 93.19234 1991 10 134.1634 1991 11 23.74554 1991 12 18.64505 1992 1 47.20139 1992 2 29.91748 1992 3 53.32708 1992 4 87.35323 1992 5 71.72298 1992 6 262.9266 1992 7 80.93405 1992 8 32.29952 1992 9 148.0622 1992 10 224.7229 1992 11 31.65102 1992 12 48.02895 1993 1 8.450031 1993 2 42.97543 1993 3 103.272 1993 4 188.5769 1993 5 68.22491 1993 6 93.89352 1993 7 45.02153 1993 8 48.8863 1993 9 261.4717 1993 10 141.4165 1993 11 82.84497 1993 12 23.03696 1994 1 117.2104 1994 2 118.6481 1994 3 13.66878 1994 4 125.6432 1994 5 124.0978 1994 6 89.81467 1994 7 20.32089 1994 8 57.65796 1994 9 267.7739 1994 10 84.28311 1994 11 286.8409 1994 12 27.0505 1995 1 25.7988 1995 2 43.18285 1995 3 12.18843 1995 4 189.436 1995 5 218.5896 1995 6 65.28807 1995 7 33.45108 1995 8 44.04497 1995 9 151.4459 1995 10 23.05961 1995 11 87.3003 1995 12 84.8651 1996 1 151.6614 1996 2 93.39428 1996 3 75.94562 1996 4 73.44913 1996 5 80.19638 1996 6 57.18756 1996 7 43.73693 1996 8 66.52785 1996 9 67.35706 1996 10 234.9358 1996 11 137.4998 1996 12 143.3496 1997 1 87.57066 1997 2 5.111933 1997 3 5.656242 1997 4 19.87696 1997 5 26.36695 1997 6 166.7311 1997 7 47.50896 1997 8 46.79012 1997 9 7.52449 1997 10 22.84551 1997 11 75.47044 1997 12 96.27342 1998 1 31.63934 1998 2 41.60738 1998 3 14.75334 1998 4 151.1717 1998 5 113.0228 1998 6 45.28856 1998 7 48.59972 1998 8 31.98767 1998 9 77.80099 1998 10 71.56444 1998 11 13.40055 1998 12 37.45127 1999 1 81.62666 1999 2 8.928299 1999 3 72.44086 1999 4 62.31833 1999 5 186.3861 1999 6 81.18629 1999 7 27.25172 1999 8 61.48338 1999 9 112.5157 1999 10 103.0037 1999 11 101.6433 1999 12 36.94057 2000 1 5.863667 2000 2 6.68931 2000 3 47.07146 2000 4 163.424 2000 5 60.34517 2000 6 109.0374 2000 7 57.08933 2000 8 74.56803 2000 9 155.9992 2000 10 249.3083 2000 11 164.659 2000 12 48.62476 2001 1 50.69685 2001 2 67.08431 2001 3 105.3431 2001 4 43.09535 2001 5 173.1749 2001 6 25.64812 2001 7 72.05582 2001 8 53.64704 2001 9 53.19357 2001 10 75.89769 2001 11 42.19294 2001 12 14.30869 2002 1 14.83512 2002 2 171.2606 2002 3 40.87472 2002 4 86.64275 2002 5 243.732 2002 6 125.3114 2002 7 100.0552 2002 8 182.857 2002 9 84.77164 2002 10 68.89272 2002 11 205.826 2002 12 69.37646 2003 1 22.36128 2003 2 15.21683 2003 3 7.554531 2003 4 73.95888 2003 5 16.24632 2003 6 29.52051 2003 7 19.89126 2003 8 33.88405 2003 9 31.53229 2003 10 57.21426 2003 11 134.4986 2003 12 170.5861 2004 1 76.05648 2004 2 129.8945 2004 3 36.22627 2004 4 144.8374 2004 5 109.345 2004 6 52.21033 2004 7 28.91731 2004 8 31.62241 2004 9 26.90411 2004 10 127.9535 2004 11 127.2073 2004 12 57.35326 2005 1 8.243799 2005 2 25.52652 2005 3 28.54109 2005 4 121.7217 2005 5 60.87112 2005 6 41.68177 2005 7 28.31626 2005 8 112.7644 2005 9 134.9959 2005 10 129.0476 2005 11 35.41422 2005 12 34.20544 2006 1 70.91093 2006 2 62.02602 2006 3 36.36312 2006 4 36.7322 2006 5 52.74248 2006 6 13.49926 2006 7 17.6549 2006 8 58.07066 2006 9 268.2471 2006 10 35.57348 2006 11 26.10683 2006 12 44.52991 2007 1 36.77225 2007 2 20.63465 2007 3 72.31331 2007 4 32.40013 2007 5 171.205 2007 6 122.1013 2007 7 22.70222 2007 8 93.77766 2007 9 51.57614 2007 10 68.7108 2007 11 61.79476 2007 12 15.4767 2008 1 93.56761 2008 2 19.78874 2008 3 28.03659 2008 4 105.041 2008 5 188.2362 2008 6 95.85524 2008 7 86.11823 2008 8 29.62446 2008 9 108.4623 2008 10 38.01441 2008 11 237.4954 2008 12 253.9215 2009 1 94.78378 2009 2 53.48778 2009 3 118.9418 2009 4 304.7104 2009 5 39.54625 2009 6 62.46328 2009 7 29.82664 2009 8 45.97139 2009 9 93.54115 2009 10 53.56598 2009 11 108.6431 2009 12 58.58183 2010 1 82.52716 2010 2 85.69861 2010 3 101.912 2010 4 54.20208 2010 5 165.1578 2010 6 154.2377 2010 7 25.60902 2010 8 100.8205 2010 9 55.022 2010 10 155.6048 2010 11 181.7281 2010 12 95.13545 2011 1 32.85074 2011 2 75.94633 2011 3 187.6531 2011 4 28.81432 2011 5 34.28507 2011 6 183.63 2011 7 85.9251 2011 8 17.20715 2011 9 52.82831 2011 10 37.0636 2011 11 241.0822 2011 12 15.81621 2012 1 66.41483 2012 2 18.34297 2012 3 61.61928 2012 4 153.9631 2012 5 152.5207 2012 6 47.41001 2012 7 116.5648 2012 8 50.04692 2012 9 88.98592 2012 10 81.32982 2012 11 154.3324 2012 12 24.0097 2013 1 43.14518 2013 2 62.17718 2013 3 157.5422 2013 4 177.9966 2013 5 229.0053 2013 6 60.20784 2013 7 64.56232 2013 8 57.40547 2013 9 45.03465 2013 10 98.5074 2013 11 123.3974 2013 12 93.66179 2014 1 114.1257 2014 2 129.7484 2014 3 110.7588 2014 4 99.20358 2014 5 106.5974 2014 6 93.24503 2014 7 137.9228 2014 8 82.14164 2014 9 40.62986 2014 10 49.57104 2014 11 267.2224 2014 12 65.12833 2015 1 40.59029 2015 2 139.4391 2015 3 132.9517 2015 4 92.8073 2015 5 137.9485 2015 6 127.4052 2015 7 26.61991 2015 8 110.0516 2015 9 73.22216 2015 10 135.7603 2015 11 9.723663 2015 12 6.706715 2016 1 21.492 2016 2 156.8499 2016 3 70.64963 2016 4 53.07961 2016 5 130.1289 2016 6 68.93111 2016 7 56.8409 2016 8 52.11449 2016 9 57.57284 2016 10 83.82511 2016 11 271.9846 2016 12 56.29253 2017 1 11.39116 2017 2 55.41134 2017 3 97.3568 2017 4 81.83002 2017 5 59.77058 2017 6 104.9209 2017 7 36.8042 2017 8 49.8395 2017 9 35.41279 2017 10 2.090454 2017 11 58.99429 2017 12 60.08768 2018 1 163.0473 2018 2 82.45993 2018 3 126.6193 2018 4 129.5433 2018 5 197.1292 2018 6 117.7206 2018 7 48.89011 2018 8 67.51537 2018 9 7.063389 2018 10 195.8513 2018 11 173.7547 2018 12 14.36138 2019 1 10.91909 2019 2 35.56252 2019 3 12.82883 2019 4 138.391 2019 5 108.5777 2019 6 62.73794 2019 7 112.3567 2019 8 50.6649 2019 9 70.15944 2019 10 146.3943 2019 11 314.7116 2019 12 86.66611 2020 1 16.94298 2020 2 5.359173 2020 3 73.26126 2020 4 68.03275 2020 5 126.0872 2020 6 87.89539 2020 7 34.96742 2020 8 62.61492 2020 9 45.45116 2020 10 94.3985 2020 11 7.930756 2020 12 84.19562 2021 1 121.7751 2021 2 27.44198 2021 3 14.91928 2021 4 61.26642 2021 5 90.97672 2021 6 35.02989 2021 7 88.33075 2021 8 29.89149 2021 9 41.34655 2021 10 70.89662 2021 11 137.3291 2021 12 22.54295 2022 1 2.637863 2022 2 6.682396 2022 3 18.78548 2022 4 69.03553 2022 5 89.16139 2022 6 67.16728 2022 7 34.92117 2022 8 39.95514 2022 9 45.31193 2022 10 78.75871 2022 11 38.08832 2022 12 61.3749