Year,Value,NumPoints 1855,5.64416,57 1856,5.64206,57 1857,5.35842,57 1858,5.41878,57 1859,5.52786,57 1860,4.88947,57 1861,5.2509,57 1862,5.19071,57 1863,5.1693,57 1864,5.18066,57 1865,5.10419,57 1866,4.93415,57 1867,4.99629,57 1868,5.08448,57 1869,5.10309,57 1870,5.27662,57 1871,5.68726,57 1872,5.05457,57 1873,6.56661,57 1874,5.97846,57 1875,4.98023,57 1876,5.48401,57 1877,5.90932,57 1878,5.73338,57 1879,5.93472,57 1880,5.49885,57 1881,6.07468,57 1882,5.75743,57 1883,5.26395,57 1884,6.32733,57 1885,4.47572,57 1886,4.75723,57 1887,3.72368,57 1888,6.46765,57 1889,5.26968,57 1890,4.40954,57 1891,7.09635,57 1892,2.79973,57 1893,5.9502,57 1894,5.26061,57 1895,5.99518,57 1896,4.95522,57 1897,4.13924,57 1898,5.64937,57 1899,3.17215,57 1900,6.42116,57 1901,6.06424,57 1902,5.80024,57 1903,5.19168,57 1904,5.90529,57 1905,5.20506,57 1906,5.81378,57 1907,4.46569,57 1908,4.20039,57 1909,5.40716,57 1910,4.50311,57 1911,5.424,57 1912,4.4939,57 1913,5.39582,57 1914,6.47832,57 1915,4.9418,57 1916,4.95855,57 1917,5.72765,57 1918,5.08402,57 1919,4.7764,57 1920,4.08688,57 1921,5.68793,57 1922,5.15769,57 1923,4.93084,57 1924,4.24378,57 1925,6.47708,57 1926,8.38392,57 1927,5.69557,57 1928,4.90122,57 1929,5.09628,57 1930,6.70152,57 1931,5.00421,57 1932,7.21653,57 1933,4.17529,57 1934,5.49692,57 1935,6.70309,57 1936,7.27599,57 1937,6.7219,57 1938,5.17714,57 1939,4.46446,57 1940,5.40015,57 1941,7.05022,57 1942,7.00673,57 1943,5.22425,57 1944,5.37649,57 1945,6.24786,57 1946,5.57374,57 1947,6.54904,57 1948,4.05767,57 1949,3.64803,57 1950,4.98581,57 1951,5.86937,57 1952,4.99524,57 1953,4.93952,57 1954,5.40706,57 1955,4.32887,57 1956,5.30852,57 1957,6.40448,57 1958,4.99786,57 1959,5.87399,57 1960,5.72373,57 1961,5.43404,57 1962,5.10543,57 1963,5.41485,57 1964,5.05993,57 1965,4.68938,57 1966,5.19973,57 1967,6.26945,57 1968,5.38225,57 1969,5.82654,57 1970,5.63775,57 1971,4.53489,57 1972,4.23083,57 1973,5.08853,57 1974,5.63873,57 1975,5.25893,57 1976,5.94798,57 1977,5.86703,57 1978,6.50192,57 1979,6.3113,57 1980,5.69919,57 1981,6.85445,57 1982,5.46629,57 1983,5.76611,57 1984,6.13982,57 1985,5.49435,57 1986,6.01884,57 1987,5.45583,57 1988,6.11308,57 1989,6.34358,57 1990,5.48162,57 1991,6.68802,57 1992,5.25632,57 1993,5.83257,57 1994,5.38039,57 1995,6.39277,57 1996,6.07431,57 1997,6.79512,57 1998,5.18387,57 1999,5.10919,57 2000,5.61267,57 2001,5.65177,57 2002,6.16278,57 2003,7.63095,57 2004,6.00421,57 2005,6.55099,57 2006,6.73015,57 2007,6.07415,57 2008,6.17007,57 2009,6.33067,57 2010,5.87548,57 2011,6.24794,57 2012,5.01876,57 2013,5.91327,57 2014,7.40764,57 2015,7.02826,57 2016,8.26472,57 2017,6.94125,57 2018,8.21882,57 2019,7.74885,57 2020,7.13258,57 2021,5.88343,57 2022,6.16009,57