Year	Years
1800	36.2
1801	36.2
1802	36.2
1803	36.2
1804	36.2
1805	36.2
1806	36.2
1807	36.2
1808	36.2
1809	36.2
1810	36.2
1811	36.2
1812	36.2
1813	36.2
1814	36.2
1815	36.2
1816	36.2
1817	36.2
1818	36.2
1819	36.2
1820	36.2
1821	36.2
1822	36.2
1823	36.2
1824	36.2
1825	36.2
1826	36.2
1827	36.2
1828	36.2
1829	36.2
1830	36.2
1831	36.2
1832	36.2
1833	36.2
1834	36.2
1835	36.2
1836	36.2
1837	36.2
1838	36.2
1839	36.2
1840	36.2
1841	36.2
1842	36.2
1843	36.2
1844	36.2
1845	36.2
1846	36.2
1847	36.2
1848	36.2
1849	36.2
1850	36.2
1851	36.2
1852	36.2
1853	36.2
1854	36.2
1855	36.2
1856	36.2
1857	36.2
1858	36.2
1859	36.2
1860	36.2
1861	36.2
1862	36.2
1863	36.2
1864	36.2
1865	36.2
1866	36.2
1867	36.2
1868	36.2
1869	36.2
1870	36.2
1871	36.19
1872	36.19
1873	36.18
1874	36.17
1875	36.16
1876	36.16
1877	36.15
1878	36.14
1879	36.14
1880	36.13
1881	36.12
1882	36.11
1883	36.11
1884	36.1
1885	36.09
1886	36.09
1887	36.08
1888	36.07
1889	36.06
1890	36.06
1891	36.05
1892	36.04
1893	36.04
1894	36.03
1895	36.02
1896	36.01
1897	36.01
1898	36
1899	35.99
1900	35.99
1901	36.59
1902	37.18
1903	37.78
1904	38.39
1905	38.99
1906	39.59
1907	40.18
1908	40.78
1909	41.38
1910	41.98
1911	42.57
1912	43.18
1913	43.78
1914	42.55
1915	37.04
1916	37.03
1917	35.04
1918	31.07
1919	33.05
1920	30.12
1921	33.38
1922	34.27
1923	43.07
1924	45.53
1925	44.63
1926	47.79
1927	46.89
1928	48.46
1929	46.57
1930	46.51
1931	47.49
1932	38.84
1933	25.68
1934	41.59
1935	51.3
1936	51.98
1937	50.74
1938	51.96
1939	51.76
1940	51.55
1941	19.72
1942	14.79
1943	13.8
1944	20.69
1945	29.56
1946	56.81
1947	46.9
1948	59.34
1949	62.09
1950	63.99
1951	64.21
1952	64.63
1953	65.05
1954	65.45
1955	65.84
1956	66.22
1957	66.58
1958	66.93
1959	67.85
1960	70.58
1961	71.27
1962	70
1963	70.63
1964	72.12
1965	71.65
1966	71.99
1967	71.73
1968	71.83
1969	71.42
1970	70.89
1971	71.12
1972	71.13
1973	71.28
1974	71.41
1975	71.16
1976	71.02
1977	70.94
1978	70.83
1979	70.59
1980	70.45
1981	70.5
1982	70.48
1983	70.4
1984	70.13
1985	70.46
1986	71.37
1987	71.46
1988	71.39
1989	70.99
1990	70.56
1991	70.15
1992	69.68
1993	68.95
1994	68.64
1995	68.29
1996	68.33
1997	68.24
1998	68.19
1999	68.09
2000	68.46
2001	68.32
2002	68.14
2003	68.47
2004	68.73
2005	68.88
2006	69.36
2007	69.93
2008	70.18
2009	70.29
2010	70.43
2011	70.69
2012	71.83
2013	72.41
2014	73.02
2015	73.29
2016	73.47
2017	73.62
2018	73.76