Year,Value,NumPoints 1900,4.66139,20 1901,4.61855,20 1902,4.15093,20 1903,5.07091,20 1904,3.41612,20 1905,4.2949,20 1906,4.85976,20 1907,3.82036,20 1908,3.77346,20 1909,3.52178,20 1910,3.52265,20 1911,3.07079,20 1912,4.52329,20 1913,5.31544,20 1914,4.27196,20 1915,5.23291,20 1916,3.95307,20 1917,4.0303,20 1918,3.90001,20 1919,3.55191,20 1920,4.28653,20 1921,4.1753,20 1922,4.42515,20 1923,4.80109,20 1924,4.14136,20 1925,3.78524,20 1926,5.1481,20 1927,5.5534,20 1928,4.41528,20 1929,5.06242,20 1930,4.78961,20 1931,4.47923,20 1932,4.56025,20 1933,4.76067,20 1934,4.325,20 1935,4.83009,20 1936,5.61546,20 1937,5.52979,20 1938,4.29449,20 1939,4.20057,20 1940,4.35823,20 1941,5.46639,20 1942,5.95748,20 1943,4.34237,20 1944,4.86754,20 1945,5.65655,20 1946,5.1941,20 1947,4.3829,20 1948,4.09083,20 1949,4.0068,20 1950,4.5544,20 1951,4.25921,20 1952,4.42137,20 1953,4.56335,20 1954,4.39802,20 1955,4.91174,20 1956,4.38001,20 1957,4.49433,20 1958,5.69664,20 1959,4.94416,20 1960,4.9404,20 1961,4.68498,20 1962,4.65086,20 1963,4.90051,20 1964,5.12863,20 1965,4.27468,20 1966,4.58933,20 1967,4.52474,20 1968,4.72375,20 1969,4.25689,20 1970,5.28051,20 1971,4.63128,20 1972,3.78529,20 1973,4.29825,20 1974,4.29131,20 1975,4.5974,20 1976,4.22128,20 1977,5.03579,20 1978,4.65403,20 1979,5.15799,20 1980,5.0239,20 1981,5.0222,20 1982,4.88813,20 1983,5.03481,20 1984,5.43181,20 1985,5.40964,20 1986,4.98732,20 1987,5.8125,20 1988,5.15117,20 1989,4.70426,20 1990,4.77542,20 1991,4.7632,20 1992,5.052,20 1993,4.83732,20 1994,5.55935,20 1995,4.52659,20 1996,4.95812,20 1997,4.87375,20 1998,5.43279,20 1999,4.99685,20 2000,4.34086,20 2001,5.14031,20 2002,4.51365,20 2003,5.83025,20 2004,4.98372,20 2005,5.20774,20 2006,4.74427,20 2007,4.35068,20 2008,4.29763,20 2009,4.05605,20 2010,4.80649,20 2011,4.81542,20 2012,4.19508,20 2013,4.64995,20 2014,5.50481,20 2015,6.17425,20 2016,6.06489,20 2017,5.6293,20 2018,5.43559,20 2019,6.23779,20 2020,5.69033,20 2021,5.33947,20 2022,4.61104,20 2023,5.17348,20