Year,Value,NumPoints 1900,1.94786,68 1901,2.27719,68 1902,2.48859,68 1903,1.986,68 1904,1.29665,68 1905,2.02862,68 1906,2.93167,68 1907,1.08703,68 1908,2.65901,68 1909,1.42265,68 1910,0.918379,68 1911,1.01458,68 1912,1.09729,68 1913,1.58993,68 1914,2.99411,68 1915,1.85172,68 1916,1.45954,68 1917,1.49994,68 1918,1.17716,68 1919,2.21321,68 1920,0.92698,68 1921,1.73272,68 1922,2.25117,68 1923,1.77786,68 1924,1.67794,68 1925,1.39188,68 1926,4.75129,68 1927,2.65671,68 1928,1.27823,68 1929,1.74144,68 1930,2.38004,68 1931,1.38145,68 1932,2.63507,68 1933,1.26151,68 1934,1.03261,68 1935,2.96005,68 1936,3.54009,68 1937,1.39876,68 1938,1.20352,68 1939,0.770585,68 1940,2.22836,68 1941,3.21229,68 1942,2.1895,68 1943,1.87237,68 1944,2.87277,68 1945,2.555,68 1946,2.20481,68 1947,0.26285,68 1948,2.34436,68 1949,1.12127,68 1950,0.756664,68 1951,1.61114,68 1952,1.45679,68 1953,1.29769,68 1954,1.60035,68 1955,0.809125,68 1956,0.721734,68 1957,2.19981,68 1958,1.23798,68 1959,1.61796,68 1960,1.40458,68 1961,1.55498,68 1962,1.48257,68 1963,1.81741,68 1964,1.3716,68 1965,1.70309,68 1966,1.87274,68 1967,1.87137,68 1968,1.55604,68 1969,1.85597,68 1970,2.45447,68 1971,1.40734,68 1972,1.55848,68 1973,2.03709,68 1974,1.57071,68 1975,1.33514,68 1976,1.57298,68 1977,1.93458,68 1978,2.59558,68 1979,2.60822,68 1980,1.86304,68 1981,2.10953,68 1982,2.15709,68 1983,2.9863,68 1984,2.82309,68 1985,2.71129,68 1986,3.1295,68 1987,2.18352,68 1988,1.62608,68 1989,1.8935,68 1990,2.48077,68 1991,2.43821,68 1992,1.4788,68 1993,2.42573,68 1994,1.88584,68 1995,2.36243,68 1996,2.73652,68 1997,2.2277,68 1998,2.20909,68 1999,1.06232,68 2000,2.8862,68 2001,2.244,68 2002,2.9562,68 2003,2.84554,68 2004,2.20823,68 2005,1.59584,68 2006,2.40696,68 2007,2.39164,68 2008,1.52438,68 2009,1.96015,68 2010,2.16035,68 2011,1.76344,68 2012,1.47133,68 2013,2.70368,68 2014,3.20301,68 2015,3.26474,68 2016,3.95134,68 2017,3.72592,68 2018,3.37395,68 2019,3.35143,68