Year	Years
1800	36.1
1801	36.1
1802	36.1
1803	36.1
1804	36.1
1805	36.1
1806	36.1
1807	36.1
1808	36.1
1809	36.1
1810	36.1
1811	36.1
1812	36.1
1813	36.1
1814	36.1
1815	36.1
1816	36.1
1817	36.1
1818	36.1
1819	36.1
1820	36.1
1821	36.1
1822	36.1
1823	36.1
1824	36.1
1825	36.1
1826	36.1
1827	36.1
1828	36.1
1829	36.1
1830	36.1
1831	36.1
1832	36.1
1833	36.1
1834	36.1
1835	36.1
1836	36.1
1837	36.1
1838	36.1
1839	36.1
1840	36.1
1841	36.1
1842	36.1
1843	36.1
1844	36.1
1845	36.1
1846	36.1
1847	36.1
1848	36.1
1849	36.1
1850	36.1
1851	36.1
1852	36.1
1853	36.1
1854	36.1
1855	36.1
1856	36.1
1857	36.1
1858	36.1
1859	36.1
1860	36.1
1861	36.1
1862	36.1
1863	36.1
1864	36.1
1865	36.1
1866	36.1
1867	36.1
1868	36.1
1869	36.1
1870	36.1
1871	36.1
1872	36.1
1873	36.09
1874	36.09
1875	36.09
1876	36.09
1877	36.08
1878	36.08
1879	36.08
1880	36.08
1881	36.07
1882	36.07
1883	36.07
1884	36.07
1885	36.06
1886	36.06
1887	36.06
1888	36.06
1889	36.05
1890	36.05
1891	36.05
1892	36.05
1893	36.05
1894	36.04
1895	36.04
1896	36.04
1897	36.04
1898	36.03
1899	36.03
1900	36.03
1901	36.03
1902	36.02
1903	36.02
1904	36.02
1905	36.02
1906	36.01
1907	36.01
1908	36.01
1909	36.01
1910	36.01
1911	36
1912	36
1913	36
1914	36
1915	35.99
1916	35.99
1917	35.99
1918	13.98
1919	35.98
1920	35.98
1921	36.79
1922	37.58
1923	38.39
1924	39.18
1925	39.99
1926	40.78
1927	41.58
1928	42.38
1929	43.18
1930	43.98
1931	44.78
1932	45.57
1933	46.38
1934	47.17
1935	47.97
1936	48.77
1937	49.57
1938	50.36
1939	51.17
1940	51.96
1941	41.48
1942	38.03
1943	35.54
1944	33.98
1945	36.61
1946	49.85
1947	56.71
1948	58.2
1949	59.09
1950	59.93
1951	60.19
1952	60.69
1953	61.19
1954	61.68
1955	62.15
1956	62.61
1957	63.07
1958	63.51
1959	63.93
1960	64.36
1961	64.76
1962	65.14
1963	65.53
1964	65.89
1965	66.24
1966	66.6
1967	66.94
1968	67.28
1969	67.62
1970	67.93
1971	68.25
1972	68.54
1973	68.82
1974	69.02
1975	69.33
1976	69.47
1977	69.79
1978	70.01
1979	70.23
1980	70.43
1981	70.61
1982	70.75
1983	70.87
1984	70.97
1985	71.05
1986	71.2
1987	71.37
1988	71.62
1989	71.92
1990	72.19
1991	70.6
1992	71.32
1993	72.25
1994	72.68
1995	72.29
1996	72.97
1997	73.17
1998	73.39
1999	73.61
2000	73.88
2001	74.15
2002	74.41
2003	74.68
2004	74.92
2005	75.13
2006	75.34
2007	75.57
2008	75.82
2009	76.06
2010	76.33
2011	76.6
2012	76.85
2013	77.08
2014	77.26
2015	77.31
2016	77.33
2017	77.5
2018	77.66