Year	Total
1800	7.5
1801	7.5
1802	7.5
1803	7.5
1804	7.5
1805	7.5
1806	7.5
1807	7.5
1808	7.5
1809	7.5
1810	7.5
1811	7.5
1812	7.5
1813	7.5
1814	7.5
1815	7.5
1816	7.5
1817	7.5
1818	7.5
1819	7.5
1820	7.5
1821	7.5
1822	7.5
1823	7.5
1824	7.5
1825	7.5
1826	7.5
1827	7.5
1828	7.5
1829	7.5
1830	7.5
1831	7.5
1832	7.5
1833	7.5
1834	7.5
1835	7.5
1836	7.5
1837	7.5
1838	7.5
1839	7.5
1840	7.5
1841	7.5
1842	7.5
1843	7.5
1844	7.5
1845	7.5
1846	7.5
1847	7.5
1848	7.5
1849	7.5
1850	7.5
1851	7.5
1852	7.5
1853	7.5
1854	7.5
1855	7.5
1856	7.5
1857	7.5
1858	7.5
1859	7.5
1860	7.5
1861	7.5
1862	7.5
1863	7.5
1864	7.5
1865	7.5
1866	7.5
1867	7.5
1868	7.5
1869	7.5
1870	7.5
1871	7.5
1872	7.5
1873	7.5
1874	7.5
1875	7.5
1876	7.5
1877	7.5
1878	7.5
1879	7.5
1880	7.5
1881	7.46
1882	7.43
1883	7.39
1884	7.36
1885	7.32
1886	7.29
1887	7.25
1888	7.21
1889	7.18
1890	7.14
1891	7.11
1892	7.07
1893	7.03
1894	7
1895	6.96
1896	6.93
1897	6.89
1898	6.83
1899	6.76
1900	6.69
1901	6.63
1902	6.56
1903	6.5
1904	6.43
1905	6.36
1906	6.3
1907	6.23
1908	6.17
1909	6.1
1910	6.03
1911	5.97
1912	5.9
1913	5.83
1914	5.77
1915	5.7
1916	5.64
1917	5.57
1918	5.5
1919	5.44
1920	5.37
1921	5.31
1922	5.24
1923	5.17
1924	5.11
1925	5.04
1926	4.98
1927	4.84
1928	4.71
1929	4.58
1930	4.45
1931	4.31
1932	4.18
1933	4.05
1934	3.92
1935	3.78
1936	3.65
1937	3.52
1938	3.39
1939	3.25
1940	3.12
1941	3.08
1942	3.04
1943	3
1944	2.96
1945	2.92
1946	2.88
1947	2.84
1948	2.8
1949	2.76
1950	2.72
1951	2.75
1952	2.81
1953	2.85
1954	2.85
1955	2.83
1956	2.79
1957	2.72
1958	2.63
1959	2.53
1960	2.42
1961	2.31
1962	2.21
1963	2.13
1964	2.07
1965	2.03
1966	2.02
1967	2.01
1968	2.02
1969	2.03
1970	2.05
1971	2.06
1972	2.06
1973	2.06
1974	2.05
1975	2.03
1976	2.02
1977	2
1978	1.99
1979	1.99
1980	1.99
1981	2
1982	2
1983	2.01
1984	2.01
1985	2
1986	1.99
1987	1.96
1988	1.92
1989	1.87
1990	1.81
1991	1.74
1992	1.66
1993	1.58
1994	1.49
1995	1.41
1996	1.34
1997	1.27
1998	1.22
1999	1.17
2000	1.15
2001	1.14
2002	1.15
2003	1.17
2004	1.2
2005	1.25
2006	1.3
2007	1.34
2008	1.38
2009	1.42
2010	1.45
2011	1.47
2012	1.49
2013	1.5
2014	1.51
2015	1.53
2016	1.54
2017	1.55
2018	1.56