Year	Years
1800	32.16
1801	36.9
1802	40.2
1803	40.28
1804	39.7
1805	41.05
1806	36.17
1807	38.76
1808	30.15
1809	26.9
1810	31.99
1811	34.58
1812	35.07
1813	36.49
1814	38.57
1815	40.42
1816	41.74
1817	40.29
1818	40.02
1819	36.97
1820	40.23
1821	38.14
1822	42.76
1823	45.19
1824	44.97
1825	45.24
1826	43.08
1827	42.64
1828	37.74
1829	36.18
1830	40.97
1831	38.98
1832	40.84
1833	42.5
1834	38.53
1835	47.14
1836	45.13
1837	39.57
1838	39.98
1839	39.88
1840	43.98
1841	45.17
1842	42.8
1843	42.82
1844	44.03
1845	45.99
1846	42.04
1847	40.12
1848	45.13
1849	44.5
1850	44.69
1851	43.62
1852	41.35
1853	39.99
1854	44.55
1855	43.08
1856	42.14
1857	34.64
1858	42
1859	44.27
1860	48.47
1861	47.12
1862	42.55
1863	45.38
1864	44.77
1865	45.4
1866	44.73
1867	46.18
1868	43.23
1869	40.96
1870	45.01
1871	48.98
1872	50.08
1873	48.68
1874	44.28
1875	44.61
1876	44.81
1877	46.04
1878	46.72
1879	48.91
1880	47.61
1881	48.49
1882	48.58
1883	49.04
1884	49.16
1885	48.92
1886	50.58
1887	51.44
1888	52.33
1889	52.28
1890	50.46
1891	51.07
1892	50.59
1893	51.34
1894	52.07
1895	54.13
1896	53.46
1897	54.11
1898	54.66
1899	50.92
1900	52.24
1901	52.89
1902	54.72
1903	55.05
1904	55.36
1905	54.51
1906	56.66
1907	56.94
1908	56.38
1909	58.37
1910	57.75
1911	57.98
1912	57.74
1913	58.63
1914	58.21
1915	57.15
1916	58.16
1917	58.84
1918	49.76
1919	56.51
1920	58.75
1921	60.97
1922	60.98
1923	62.93
1924	61.93
1925	62.49
1926	62.72
1927	61.52
1928	62.2
1929	62.24
1930	63.11
1931	62.61
1932	63.87
1933	64.75
1934	64.89
1935	64.77
1936	64.52
1937	64.54
1938	65.48
1939	66.3
1940	66.64
1941	66.93
1942	68.87
1943	68.62
1944	67.64
1945	68.23
1946	69.4
1947	69.36
1948	70.62
1949	70.68
1950	71.02
1951	71.25
1952	71.74
1953	71.78
1954	72.23
1955	72.47
1956	72.53
1957	72.36
1958	73.01
1959	73.23
1960	72.9
1961	73.36
1962	73.23
1963	73.42
1964	73.59
1965	73.73
1966	73.98
1967	74.01
1968	73.88
1969	74
1970	74.55
1971	74.65
1972	74.76
1973	74.92
1974	75
1975	75.06
1976	75.18
1977	75.39
1978	75.54
1979	75.61
1980	75.86
1981	76.17
1982	76.44
1983	76.69
1984	76.88
1985	76.91
1986	77.04
1987	77.11
1988	77.21
1989	77.51
1990	77.64
1991	77.81
1992	78.1
1993	78.31
1994	78.47
1995	78.84
1996	79.08
1997	79.29
1998	79.41
1999	79.51
2000	79.66
2001	79.81
2002	79.96
2003	80.11
2004	80.23
2005	80.5
2006	80.74
2007	80.9
2008	81.06
2009	81.27
2010	81.52
2011	81.68
2012	81.76
2013	81.89
2014	82.07
2015	82.06
2016	82.05
2017	82.21
2018	82.37