Year	Years
1800	25.1
1801	25.1
1802	25.1
1803	25.1
1804	25.1
1805	25.1
1806	25.1
1807	25.1
1808	25.1
1809	25.1
1810	25.1
1811	25.1
1812	25.1
1813	25.1
1814	25.1
1815	25.1
1816	25.1
1817	25.1
1818	25.1
1819	25.1
1820	25.1
1821	25.1
1822	25.1
1823	25.1
1824	25.1
1825	25.1
1826	25.1
1827	25.1
1828	25.1
1829	25.1
1830	25.1
1831	25.1
1832	25.1
1833	25.1
1834	25.1
1835	25.1
1836	25.1
1837	25.1
1838	25.1
1839	25.1
1840	25.1
1841	25.1
1842	25.1
1843	25.1
1844	25.1
1845	25.1
1846	25.1
1847	25.1
1848	25.1
1849	25.1
1850	25.1
1851	25.1
1852	25.1
1853	25.1
1854	25.1
1855	25.1
1856	25.1
1857	25.1
1858	25.1
1859	25.1
1860	25.1
1861	25.1
1862	25.1
1863	25.1
1864	25.1
1865	25.1
1866	25.1
1867	25.1
1868	25.1
1869	25.1
1870	25.1
1871	25.18
1872	25.26
1873	25.34
1874	25.42
1875	25.5
1876	25.58
1877	25.66
1878	25.74
1879	25.82
1880	25.9
1881	25.98
1882	26.06
1883	26.14
1884	26.22
1885	26.3
1886	26.38
1887	26.46
1888	26.54
1889	26.62
1890	26.7
1891	26.78
1892	26.85
1893	26.93
1894	27.01
1895	27.09
1896	27.17
1897	27.25
1898	27.33
1899	27.41
1900	27.49
1901	27.57
1902	27.65
1903	27.73
1904	27.81
1905	27.89
1906	27.97
1907	28.05
1908	28.13
1909	28.21
1910	28.29
1911	28.37
1912	28.45
1913	28.53
1914	28.61
1915	28.69
1916	28.77
1917	28.85
1918	13.67
1919	29.01
1920	29.09
1921	29.17
1922	29.25
1923	29.33
1924	29.41
1925	29.49
1926	29.57
1927	29.5
1928	29.44
1929	29.38
1930	29.31
1931	29.25
1932	29.38
1933	29.51
1934	29.64
1935	29.77
1936	29.89
1937	30.03
1938	30.16
1939	30.29
1940	30.43
1941	30.55
1942	30.68
1943	30.81
1944	30.95
1945	31.08
1946	31.98
1947	32.9
1948	33.8
1949	34.73
1950	35.65
1951	35.86
1952	36.19
1953	36.54
1954	36.88
1955	37.24
1956	37.6
1957	37.96
1958	38.33
1959	38.69
1960	39.06
1961	39.42
1962	39.79
1963	40.17
1964	40.6
1965	41.1
1966	41.72
1967	42.49
1968	43.41
1969	44.45
1970	45.6
1971	46.01
1972	46.36
1973	46.7
1974	47.02
1975	47.29
1976	47.54
1977	47.75
1978	47.93
1979	48.09
1980	48.21
1981	48.4
1982	48.62
1983	48.79
1984	49.02
1985	49.24
1986	49.17
1987	49.65
1988	49.95
1989	50.25
1990	50.6
1991	50.38
1992	50.86
1993	51.13
1994	50.46
1995	49.94
1996	51.27
1997	50.77
1998	49.06
1999	49.12
2000	50.93
2001	51.32
2002	51.37
2003	51.72
2004	52.1
2005	52.45
2006	52.88
2007	53.21
2008	53.83
2009	54.31
2010	55.05
2011	55.71
2012	56.44
2013	57.38
2014	53.87
2015	57.62
2016	59.15
2017	59.58
2018	60