Year	Years
1800	25.6
1801	25.6
1802	25.6
1803	25.6
1804	25.6
1805	25.6
1806	25.6
1807	25.6
1808	25.6
1809	25.6
1810	25.6
1811	25.6
1812	25.6
1813	25.6
1814	25.6
1815	25.6
1816	25.6
1817	25.6
1818	25.6
1819	25.6
1820	25.6
1821	25.6
1822	25.6
1823	25.6
1824	25.6
1825	25.6
1826	25.6
1827	25.6
1828	25.6
1829	25.6
1830	25.6
1831	25.6
1832	25.6
1833	25.6
1834	25.6
1835	25.6
1836	25.6
1837	25.6
1838	25.6
1839	25.6
1840	25.6
1841	25.6
1842	25.6
1843	25.6
1844	25.6
1845	25.6
1846	25.6
1847	25.6
1848	25.6
1849	25.6
1850	25.6
1851	25.6
1852	25.6
1853	25.6
1854	25.6
1855	25.6
1856	25.6
1857	25.6
1858	25.6
1859	25.6
1860	25.6
1861	25.6
1862	25.6
1863	25.6
1864	25.6
1865	25.6
1866	25.6
1867	25.6
1868	25.6
1869	25.6
1870	25.6
1871	25.62
1872	25.65
1873	25.67
1874	25.69
1875	25.72
1876	25.74
1877	25.77
1878	25.79
1879	25.81
1880	25.84
1881	25.86
1882	25.88
1883	25.91
1884	25.93
1885	25.96
1886	25.98
1887	26
1888	26.03
1889	26.05
1890	26.07
1891	26.1
1892	26.12
1893	26.14
1894	26.17
1895	26.19
1896	26.22
1897	26.24
1898	26.26
1899	26.29
1900	26.31
1901	26.33
1902	26.36
1903	26.38
1904	26.41
1905	26.43
1906	26.45
1907	26.48
1908	26.5
1909	26.52
1910	26.55
1911	26.57
1912	26.59
1913	26.62
1914	26.64
1915	26.67
1916	26.69
1917	26.71
1918	22.16
1919	26.76
1920	26.78
1921	26.81
1922	26.83
1923	26.86
1924	26.88
1925	26.9
1926	26.93
1927	26.95
1928	26.97
1929	27
1930	27.02
1931	27.04
1932	27.07
1933	27.09
1934	27.12
1935	27.14
1936	27.16
1937	27.19
1938	27.21
1939	27.23
1940	27.26
1941	28.75
1942	30.25
1943	31.76
1944	33.26
1945	34.77
1946	36.27
1947	37.78
1948	39.29
1949	40.82
1950	42.34
1951	42.69
1952	43.35
1953	44.02
1954	44.68
1955	45.36
1956	46.02
1957	46.7
1958	47.37
1959	48.03
1960	48.69
1961	49.34
1962	49.99
1963	50.63
1964	51.27
1965	51.93
1966	52.59
1967	53.28
1968	54
1969	54.74
1970	55.57
1971	57.61
1972	59.18
1973	61.51
1974	63.32
1975	64.5
1976	65.62
1977	66.34
1978	64.9
1979	67.32
1980	66.48
1981	64.92
1982	65.46
1983	66.22
1984	67.66
1985	68.29
1986	68.14
1987	68.15
1988	68.08
1989	69.97
1990	68.16
1991	70.3
1992	70.57
1993	70.68
1994	70.84
1995	70.93
1996	70.98
1997	71.12
1998	71.34
1999	71.56
2000	71.61
2001	71.64
2002	71.73
2003	70.29
2004	72.08
2005	72.52
2006	72.98
2007	73.4
2008	73.78
2009	74.13
2010	74.45
2011	74.8
2012	74.9
2013	75.04
2014	75.3
2015	75.8
2016	76.08
2017	76.28
2018	76.47