Year	Years
1800	32
1801	32
1802	32
1803	32
1804	32
1805	32
1806	32
1807	32
1808	32
1809	32
1810	32
1811	32
1812	32
1813	32
1814	32
1815	32
1816	32
1817	32
1818	32
1819	32
1820	32
1821	32
1822	32
1823	32
1824	32
1825	32
1826	32
1827	32
1828	32
1829	32
1830	32
1831	32
1832	32
1833	32
1834	32
1835	32
1836	32
1837	32
1838	32
1839	32
1840	32
1841	32
1842	32
1843	32
1844	32
1845	32
1846	32
1847	32
1848	32
1849	32
1850	32
1851	32
1852	32
1853	32
1854	32
1855	32
1856	32
1857	32
1858	32
1859	32
1860	32
1861	32
1862	32
1863	32
1864	32
1865	32
1866	32
1867	32
1868	32
1869	32
1870	32
1871	32.01
1872	32.01
1873	32.02
1874	32.03
1875	32.04
1876	32.04
1877	32.05
1878	32.06
1879	32.07
1880	32.07
1881	32.08
1882	32.09
1883	32.09
1884	32.1
1885	32.11
1886	32.12
1887	32.12
1888	32.13
1889	32.14
1890	32.15
1891	32.15
1892	32.16
1893	32.17
1894	32.17
1895	32.18
1896	32.19
1897	32.2
1898	32.2
1899	32.21
1900	32.22
1901	32.23
1902	32.23
1903	31.94
1904	31.64
1905	31.35
1906	31.05
1907	30.76
1908	31.05
1909	31.33
1910	31.62
1911	31.91
1912	32.2
1913	32.27
1914	32.34
1915	32.41
1916	32.48
1917	32.54
1918	28.58
1919	32.32
1920	32.2
1921	32.09
1922	31.97
1923	33.07
1924	34.17
1925	35.27
1926	36.38
1927	37.48
1928	37.83
1929	38.18
1930	38.54
1931	38.89
1932	39.24
1933	39.33
1934	39.42
1935	39.51
1936	39.6
1937	39.69
1938	40.7
1939	41.7
1940	42.71
1941	43.71
1942	44.72
1943	45.52
1944	46.33
1945	47.13
1946	47.93
1947	48.74
1948	50.94
1949	53.13
1950	55.33
1951	55.45
1952	55.69
1953	55.94
1954	56.21
1955	56.5
1956	56.81
1957	57.13
1958	57.46
1959	57.81
1960	58.2
1961	58.61
1962	59.04
1963	59.51
1964	60.01
1965	60.54
1966	61.08
1967	61.65
1968	62.22
1969	62.82
1970	63.43
1971	63.7
1972	63.96
1973	64.46
1974	66.32
1975	67.17
1976	67.51
1977	68.18
1978	68.79
1979	69.38
1980	70.21
1981	71.1
1982	71.48
1983	71.43
1984	71.6
1985	72.15
1986	72.98
1987	73.45
1988	73.44
1989	73.34
1990	73.52
1991	74.26
1992	74.93
1993	75.15
1994	75.31
1995	75.4
1996	75.71
1997	76.18
1998	76.54
1999	76.86
2000	77.24
2001	77.43
2002	77.66
2003	77.86
2004	78.06
2005	78.37
2006	78.68
2007	78.92
2008	79.2
2009	79.2
2010	79.12
2011	79.45
2012	79.59
2013	79.78
2014	80.01
2015	80.13
2016	80.24
2017	80.45
2018	80.66