Year,Value,NumPoints
1851,-0.195826,79
1852,-0.355795,78
1853,-0.437941,81
1854,-0.083424,80
1855,-0.582496,84
1856,-0.653907,88
1857,-0.537562,90
1858,-0.434791,95
1859,-0.0508542,96
1860,-0.679638,92
1861,-0.421048,92
1862,-0.726655,92
1863,-0.0461093,92
1864,-0.782372,94
1865,-0.355459,97
1866,-0.321563,104
1867,-0.633344,106
1868,-0.336729,111
1869,-0.312912,115
1870,-0.50097,118
1871,-0.691074,122
1872,-0.267489,130
1873,-0.379535,143
1874,-0.340309,146
1875,-0.868346,165
1876,-0.495193,167
1877,-0.25107,169
1878,0.0813029,178
1879,-0.509867,182
1880,-0.412276,191
1881,-0.454296,203
1882,-0.304251,211
1883,-0.604461,218
1884,-0.751685,223
1885,-0.725818,232
1886,-0.563443,240
1887,-0.585074,247
1888,-0.651506,255
1889,-0.292443,263
1890,-0.390329,276
1891,-0.512711,286
1892,-0.595529,285
1893,-0.684852,290
1894,-0.37835,295
1895,-0.549574,298
1896,-0.373125,304
1897,-0.292875,314
1898,-0.367971,324
1899,-0.308187,333
1900,-0.198434,337
1901,-0.153116,350
1902,-0.423359,361
1903,-0.422453,366
1904,-0.530853,367
1905,-0.388217,379
1906,-0.176885,385
1907,-0.609562,395
1908,-0.447085,393
1909,-0.41099,407
1910,-0.335305,416
1911,-0.41293,426
1912,-0.475459,435
1913,-0.323006,438
1914,-0.08322,436
1915,-0.0882139,434
1916,-0.366121,440
1917,-0.66995,449
1918,-0.424007,444
1919,-0.305296,433
1920,-0.256488,435
1921,-0.0824725,446
1922,-0.248845,456
1923,-0.250125,473
1924,-0.309049,483
1925,-0.184588,489
1926,-0.0610341,496
1927,-0.214229,503
1928,-0.148897,505
1929,-0.485919,520
1930,-0.103396,521
1931,-0.0748023,539
1932,-0.085962,546
1933,-0.333925,568
1934,-0.0232091,571
1935,-0.168618,580
1936,-0.128499,600
1937,-0.0402254,610
1938,0.159163,619
1939,0.0110287,626
1940,-0.0597057,632
1941,-0.0404823,657
1942,-0.0621414,659
1943,0.0132369,664
1944,0.092669,663
1945,-0.144558,670
1946,-0.0930821,685
1947,-0.022719,700
1948,-0.000597574,714
1949,-0.115351,727
1950,-0.315912,747
1951,-0.113224,808
1952,-0.069801,820
1953,0.132157,823
1954,-0.150352,836
1955,-0.195471,848
1956,-0.436702,863
1957,-0.0817137,875
1958,0.0389759,877
1959,0.0164718,889
1960,-0.0663065,893
1961,0.0402697,913
1962,0.0280329,917
1963,0.0221282,919
1964,-0.285225,920
1965,-0.233458,923
1966,-0.129489,927
1967,-0.0879641,928
1968,-0.205644,925
1969,-0.114287,933
1970,-0.0509987,931
1971,-0.203963,925
1972,-0.230739,921
1973,0.138514,921
1974,-0.27838,916
1975,-0.062927,917
1976,-0.351859,915
1977,0.0861147,911
1978,-0.0464531,913
1979,0.0413786,910
1980,0.127937,912
1981,0.303941,901
1982,-0.0137556,894
1983,0.318353,896
1984,-0.0420677,894
1985,-0.0334,901
1986,0.10433,896
1987,0.262307,894
1988,0.365161,889
1989,0.237472,884
1990,0.491013,883
1991,0.377684,858
1992,0.0872081,854
1993,0.172037,852
1994,0.326667,850
1995,0.572225,861
1996,0.228562,840
1997,0.492041,840
1998,0.843975,848
1999,0.562177,841
2000,0.478823,841
2001,0.677573,818
2002,0.775059,821
2003,0.767733,821
2004,0.662336,819
2005,0.874969,816
2006,0.820276,817
2007,0.918905,817
2008,0.692841,819
2009,0.742162,807
2010,0.943161,810
2011,0.73371,794
2012,0.785746,799
2013,0.853755,791
2014,0.887537,782
2015,1.18395,778
2016,1.32521,766
2017,1.18136,751
2018,0.990364,727
2019,1.18421,697
2020,1.33918,687
2021,1.0823,694