Year,Value,NumPoints 1855,10.093,50 1856,10.0538,50 1857,10.3847,50 1858,10.1133,50 1859,8.05571,50 1860,9.75718,50 1861,9.32734,50 1862,9.35307,50 1863,9.64071,50 1864,9.70705,50 1865,9.60964,50 1866,9.49109,50 1867,9.71454,50 1868,9.59619,50 1869,9.20662,50 1870,9.65555,50 1871,9.60555,50 1872,9.50457,50 1873,7.74828,50 1874,11.0098,50 1875,8.93084,50 1876,9.97137,50 1877,10.3014,50 1878,8.34943,50 1879,10.0564,50 1880,9.6593,50 1881,10.5314,50 1882,9.53845,50 1883,12.6136,50 1884,11.3367,50 1885,6.12787,50 1886,9.47357,50 1887,5.83988,50 1888,9.52555,50 1889,9.55033,50 1890,7.91816,50 1891,8.45998,50 1892,6.08195,50 1893,9.09694,50 1894,7.34328,50 1895,11.5933,50 1896,8.48746,50 1897,8.46863,50 1898,10.6772,50 1899,9.72102,50 1900,11.5351,50 1901,7.86676,50 1902,10.0999,50 1903,9.21344,50 1904,9.63509,50 1905,8.01448,50 1906,10.303,50 1907,9.11045,50 1908,7.46346,50 1909,7.70258,50 1910,6.58307,50 1911,10.2115,50 1912,9.94811,50 1913,8.46995,50 1914,9.4095,50 1915,9.2217,50 1916,8.81597,50 1917,8.24752,50 1918,8.64202,50 1919,9.70098,50 1920,8.23442,50 1921,9.28369,50 1922,9.53959,50 1923,9.23615,50 1924,8.51989,50 1925,10.7355,50 1926,10.7268,50 1927,8.84898,50 1928,8.95329,50 1929,10.0156,50 1930,9.58895,50 1931,9.80217,50 1932,9.48544,50 1933,8.90319,50 1934,9.97211,50 1935,10.3571,50 1936,11.4113,50 1937,10.8239,50 1938,9.91356,50 1939,9.46184,50 1940,9.93109,50 1941,10.9276,50 1942,10.498,50 1943,8.90579,50 1944,9.78949,50 1945,10.5193,50 1946,9.23491,50 1947,8.95404,50 1948,7.79345,50 1949,9.71321,50 1950,9.21276,50 1951,9.76931,50 1952,9.92961,50 1953,9.518,50 1954,10.4129,50 1955,8.86249,50 1956,9.14203,50 1957,11.1625,50 1958,9.72703,50 1959,9.89581,50 1960,9.72993,50 1961,9.3642,50 1962,9.4716,50 1963,10.6288,50 1964,9.60364,50 1965,9.63651,50 1966,9.14151,50 1967,9.79002,50 1968,8.96301,50 1969,10.1603,50 1970,9.7123,50 1971,8.22413,50 1972,8.32028,50 1973,8.78324,50 1974,9.81287,50 1975,9.05614,50 1976,9.11257,50 1977,10.0569,50 1978,9.75578,50 1979,10.1938,50 1980,9.65071,50 1981,9.98548,50 1982,9.34423,50 1983,9.75288,50 1984,10.0023,50 1985,9.47599,50 1986,10.4566,50 1987,9.92004,50 1988,9.39703,50 1989,10.3721,50 1990,9.4625,50 1991,9.87962,50 1992,9.05285,50 1993,10.3958,50 1994,9.32911,50 1995,10.0057,50 1996,9.24697,50 1997,10.6237,50 1998,9.83171,50 1999,9.04689,50 2000,9.41208,50 2001,9.32773,50 2002,10.3924,50 2003,10.4665,50 2004,10.2616,50 2005,10.0467,50 2006,9.80249,50 2007,9.17672,50 2008,9.34645,50 2009,9.60307,50 2010,9.80925,50 2011,9.52113,50 2012,9.32682,50 2013,9.59792,50 2014,11.1351,50 2015,10.6457,50 2016,11.2177,50 2017,10.1505,50 2018,11.7962,50 2019,10.8701,50 2020,10.735,50 2021,8.92427,50 2022,11.1215,50