Year,Value,NumPoints
1881,-0.032678,920
1882,-1.47535,1061
1883,-0.0179849,1062
1884,-0.2926,1008
1885,-1.61243,1252
1886,-0.374561,1008
1887,-1.62935,1086
1888,-0.575365,1141
1889,-0.177906,1141
1890,1.3379,1146
1891,-1.01988,1021
1892,0.411678,1176
1893,0.116386,1293
1894,-0.603232,1271
1895,-0.273592,1358
1896,1.23677,1349
1897,-0.648473,1380
1898,-0.907361,1415
1899,-0.227265,1324
1900,-0.0990739,1379
1901,-0.183637,1468
1902,-0.815497,1468
1903,-0.750889,1468
1904,0.0225436,1380
1905,-0.641097,1342
1906,1.08953,1369
1907,0.827666,1449
1908,0.578407,1408
1909,-0.0285602,1467
1910,0.247272,1502
1911,1.58377,1398
1912,-1.46569,1468
1913,-0.575479,1437
1914,0.946015,1480
1915,-0.86213,1480
1916,0.96742,1544
1917,-1.30135,1464
1918,-0.242422,1446
1919,1.09219,1446
1920,-1.13687,1494
1921,0.35629,1544
1922,-0.502036,1555
1923,1.71077,1547
1924,0.208401,1500
1925,0.891624,1581
1926,1.05109,1582
1927,0.669573,1582
1928,0.338112,1582
1929,0.986465,1582
1930,-0.153527,2340
1931,2.01414,2340
1932,1.04129,2340
1933,0.241765,2340
1934,1.46246,1602
1935,0.341061,1602
1936,0.75488,2340
1937,1.38924,2340
1938,1.92738,2340
1939,0.761444,2340
1940,0.922077,2340
1941,1.19926,2340
1942,1.16278,2340
1943,2.21879,1620
1944,1.71395,1620
1945,1.44102,1620
1946,0.436605,2340
1947,2.96988,2340
1948,1.47245,2340
1949,0.601564,2340
1950,0.347106,2340
1951,1.25552,2340
1952,0.194425,2340
1953,1.00403,2340
1954,1.64793,2340
1955,1.17927,2340
1956,-1.80438,2340
1957,0.338495,2340
1958,-0.0811083,2340
1959,0.00176094,2340
1960,0.0290108,2340
1961,0.317821,2340
1962,0.00657651,2340
1963,0.0660015,2340
1964,-0.165285,2340
1965,-0.751174,2340
1966,-1.88902,2340
1967,1.46812,2340
1968,-0.173928,2340
1969,0.779681,2340
1970,-0.500473,2340
1971,-9.2917e-05,2340
1972,0.250944,2340
1973,-0.251703,2340
1974,-0.570204,2340
1975,-0.344817,2340
1976,-1.31786,2340
1977,-0.712409,2340
1978,-0.713415,2340
1979,-0.264658,2340
1980,1.00165,2340
1981,1.33863,2340
1982,-1.1074,2340
1983,-0.175074,2340
1984,1.03167,2340
1985,0.248694,2340
1986,-0.120732,2340
1987,0.54574,2340
1988,0.395293,2340
1989,-0.299949,2340
1990,-0.101264,2340
1991,0.391929,2340
1992,-1.52995,2340
1993,0.395268,2340
1994,1.15475,2340
1995,1.21822,2340
1996,-0.338565,2340
1997,1.02503,2340
1998,0.298946,2340
1999,0.355736,2340
2000,0.780429,2340
2001,0.60555,2340
2002,2.38198,2340
2003,2.39433,2340
2004,0.727978,2340
2005,2.26004,2340
2006,2.11271,2340
2007,2.62198,2340
2008,2.05725,2340
2009,2.34098,2340
2010,2.9786,2340
2011,2.83469,2340
2012,2.76113,2340
2013,2.11413,2340
2014,1.85848,2340
2015,2.40946,2340
2016,3.71264,2340
2017,2.44601,2340
2018,3.61011,2340
2019,3.60604,2340