Year	Total
1801	0
1802	0
1803	0
1804	0
1805	0
1806	0
1807	0
1808	0
1809	0
1810	0
1811	0
1812	0
1813	0
1814	0
1815	0
1816	0
1817	0
1818	0
1819	0
1820	0
1821	0.2262
1822	0.2262
1823	0.2262
1824	0.2262
1825	0.2262
1826	0.2262
1827	0.2262
1828	0.2262
1829	0.2263
1830	0.2262
1831	0.2262
1832	0.2263
1833	0.2262
1834	0.2262
1835	0.2262
1836	0.2262
1837	0.2263
1838	0.2262
1839	0.2262
1840	0.2262
1841	0.2262
1842	0.2262
1843	0.2262
1844	0.2262
1845	0.2262
1846	0.2262
1847	0.2262
1848	0.2262
1849	0.2262
1850	0.2262
1851	0.2262
1852	0.2263
1853	0.2262
1854	0.2263
1855	0.2262
1856	0.2263
1857	0.2262
1858	0.2262
1859	0.2262
1860	0.2262
1861	0.2263
1862	0.2262
1863	0.2262
1864	0.2262
1865	0.2263
1866	0.2262
1867	0.2262
1868	0.2262
1869	0.2262
1870	0.2262
1871	0.6335
1872	0.6335
1873	0.6334
1874	0.6334
1875	0.6335
1876	0.6334
1877	0.6335
1878	0.6334
1879	0.6335
1880	0.6335
1881	0.6335
1882	0.6335
1883	0.6335
1884	0.6335
1885	0.6335
1886	0.6334
1887	0.6335
1888	0.6335
1889	0.6334
1890	0.6334
1891	0.6334
1892	0.6335
1893	0.6335
1894	0.6335
1895	0.9443
1896	0.9443
1897	0.9443
1898	0.9443
1899	0.9443
1900	0.9443
1901	0.9443
1902	0.9443
1903	0.9443
1904	0.9443
1905	0.9443
1906	0.9443
1907	0.9443
1908	0.9444
1909	0.9443
1910	0.9443
1911	0.9443
1912	0.9443
1913	0.9443
1914	1.256
1915	1.256
1916	1.256
1917	1.256
1918	1.256
1919	1.256
1920	1.256
1921	1.256
1922	1.256
1923	1.256
1924	1.256
1925	1.256
1926	1.256
1927	1.256
1928	1.256
1929	1.256
1930	1.256
1931	1.256
1932	1.256
1933	1.256
1934	1.256
1935	1.256
1936	1.256
1937	1.256
1938	1.256
1939	1.256
1940	1.256
1941	1.256
1942	1.256
1943	1.256
1944	1.256
1945	1.256
1946	1.256
1947	1.256
1948	1.256
1949	1.256
1950	1.256
1951	3.497
1952	6.022
1953	0.5976
1954	11.13
1955	-2.473
1956	12.8
1957	6.348
1958	4.725
1959	9.489
1960	5.7
1961	-1.258
1962	7.757
1963	7.152
1964	-2.922
1965	4.687
1966	4.599
1967	5.271
1968	4.556
1969	1.222
1970	0.7743
1971	-4.961
1972	-5.391
1973	-18.91
1974	-5.25
1975	-1.329
1976	0.01107
1977	-14.73
1978	0.07069
1979	-12.72
1980	-5.786
1981	-0.1142
1982	-0.1261
1983	4.608
1984	4.924
1985	4.163
1986	4.796
1987	20.72
1988	11.93
1989	6.908
1990	0.5417
1991	9.74
1992	7.398
1993	-5.394
1994	8.487
1995	9.515
1996	-3.212
1997	7.29
1998	2.182
1999	13.03
2000	7.048
2001	8.332
2002	10.52
2003	8.152
2004	9.007
2005	12.46
2006	9.433
2007	10.22
2008	6.12
2009	-0.4515
2010	6.251
2011	7.271
2012	7.515
2013	7.256