Year	Years
1800	29.17
1801	29.17
1802	29.17
1803	29.17
1804	29.17
1805	29.17
1806	29.17
1807	29.17
1808	29.17
1809	29.17
1810	29.17
1811	29.17
1812	29.17
1813	29.17
1814	29.17
1815	29.17
1816	29.17
1817	29.17
1818	29.17
1819	29.17
1820	29.17
1821	29.17
1822	29.17
1823	29.17
1824	29.17
1825	29.17
1826	29.17
1827	29.17
1828	29.17
1829	29.17
1830	29.17
1831	29.17
1832	29.17
1833	29.17
1834	29.17
1835	29.17
1836	29.17
1837	29.17
1838	29.17
1839	29.17
1840	29.17
1841	29.17
1842	29.17
1843	29.17
1844	29.17
1845	29.17
1846	29.17
1847	29.17
1848	29.17
1849	29.17
1850	29.17
1851	29.17
1852	29.17
1853	29.17
1854	29.17
1855	29.17
1856	29.17
1857	29.17
1858	29.17
1859	29.17
1860	29.17
1861	29.17
1862	29.17
1863	29.17
1864	28.64
1865	28.12
1866	27.59
1867	27.07
1868	26.55
1869	26.59
1870	26.63
1871	26.66
1872	26.69
1873	26.72
1874	26.91
1875	27.09
1876	27.27
1877	27.46
1878	27.64
1879	27.82
1880	28
1881	28.19
1882	28.37
1883	28.55
1884	28.73
1885	28.91
1886	29.09
1887	29.27
1888	29.45
1889	29.63
1890	29.81
1891	29.99
1892	30.17
1893	30.35
1894	30.53
1895	30.71
1896	30.89
1897	31.07
1898	30.88
1899	30.7
1900	30.52
1901	30.75
1902	30.97
1903	31.2
1904	31.43
1905	31.65
1906	31.88
1907	32.1
1908	32.33
1909	32.55
1910	32.78
1911	35.64
1912	36.04
1913	33.9
1914	33.48
1915	33.07
1916	33.05
1917	30.11
1918	21.38
1919	31.08
1920	29.12
1921	32.01
1922	32.96
1923	33.95
1924	36.35
1925	35.45
1926	38.52
1927	37.85
1928	39.29
1929	38.07
1930	37.38
1931	35.67
1932	33.24
1933	26
1934	39.57
1935	41.04
1936	42.61
1937	41.64
1938	43.23
1939	45.51
1940	43.11
1941	29.03
1942	25.66
1943	23.73
1944	30.6
1945	40.14
1946	49.64
1947	41.97
1948	49.65
1949	52.29
1950	54.45
1951	54.6
1952	54.96
1953	55.32
1954	55.68
1955	56.03
1956	56.38
1957	56.73
1958	57.09
1959	57.44
1960	57.79
1961	58.15
1962	58.51
1963	58.87
1964	59.23
1965	59.59
1966	59.93
1967	60.29
1968	60.62
1969	60.93
1970	61.21
1971	61.91
1972	62.52
1973	63.19
1974	63.81
1975	64.35
1976	64.91
1977	65.2
1978	65.39
1979	65.47
1980	65.47
1981	65.46
1982	65.68
1983	65.79
1984	65.61
1985	65.9
1986	65.91
1987	65.97
1988	65.86
1989	66.25
1990	66.22
1991	65.92
1992	64.27
1993	64.41
1994	63.93
1995	64.89
1996	65.32
1997	65.64
1998	65.81
1999	66.11
2000	66.56
2001	67.21
2002	67.5
2003	67.33
2004	67.44
2005	67.64
2006	68
2007	68.35
2008	68.4
2009	68.8
2010	69.13
2011	69.94
2012	70.23
2013	71
2014	71.47
2015	71.79
2016	72.11
2017	72.2
2018	72.3