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	1.411
1822	1.412
1823	1.409
1824	1.413
1825	1.41
1826	1.411
1827	1.412
1828	1.411
1829	1.41
1830	1.411
1831	1.412
1832	1.411
1833	1.412
1834	1.411
1835	1.412
1836	1.41
1837	1.411
1838	1.412
1839	1.41
1840	1.411
1841	1.411
1842	1.412
1843	1.41
1844	1.411
1845	1.411
1846	1.412
1847	1.412
1848	1.41
1849	1.412
1850	1.411
1851	1.411
1852	1.411
1853	1.411
1854	1.413
1855	1.411
1856	1.411
1857	1.411
1858	1.411
1859	1.412
1860	1.412
1861	1.41
1862	1.411
1863	1.411
1864	1.412
1865	1.41
1866	1.411
1867	1.412
1868	1.41
1869	1.411
1870	1.411
1871	1.412
1872	1.411
1873	1.41
1874	1.413
1875	1.41
1876	1.411
1877	1.412
1878	1.411
1879	1.411
1880	1.41
1881	1.411
1882	1.411
1883	1.41
1884	1.412
1885	1.411
1886	1.411
1887	1.41
1888	1.412
1889	1.411
1890	1.412
1891	1.411
1892	1.411
1893	1.411
1894	1.412
1895	1.411
1896	1.411
1897	1.412
1898	1.412
1899	1.411
1900	1.411
1901	1.411
1902	1.412
1903	1.411
1904	1.411
1905	1.412
1906	1.411
1907	1.41
1908	1.411
1909	1.412
1910	1.411
1911	1.412
1912	1.411
1913	1.411
1914	4.454
1915	4.456
1916	4.455
1917	4.455
1918	4.454
1919	4.456
1920	4.455
1921	4.456
1922	4.455
1923	4.455
1924	4.456
1925	4.455
1926	4.456
1927	4.454
1928	4.455
1929	4.456
1930	4.455
1931	4.455
1932	4.455
1933	4.455
1934	4.455
1935	4.455
1936	4.455
1937	4.456
1938	4.455
1939	4.454
1940	4.456
1941	4.455
1942	4.455
1943	4.455
1944	4.456
1945	4.455
1946	4.456
1947	4.455
1948	4.455
1949	4.455
1950	4.456
1951	5.806
1952	5.668
1953	5.606
1954	5.599
1955	5.621
1956	5.651
1957	5.673
1958	5.667
1959	5.628
1960	5.559
1961	5.476
1962	5.406
1963	5.377
1964	5.403
1965	5.456
1966	5.532
1967	5.57
1968	5.522
1969	5.357
1970	5.123
1971	6.442
1972	4.707
1973	4.076
1974	5.464
1975	2.586
1976	6.247
1977	36.37
1978	6.654
1979	4.754
1980	8.623
1981	1.173
1982	-1.83
1983	-0.5173
1984	-1.792
1985	-2.07
1986	-5.476
1987	1.227
1988	1.512
1989	7.796
1990	1.487
1991	1.77
1992	3.152
1993	4.528
1994	5.386
1995	1.521
1996	1.332
1997	1.241
1998	-2.945
1999	-1.836
2000	-2.718
2001	1.298
2002	0.3252
2003	1.445
2004	1.186
2005	1.017
2006	2.1
2007	3.2
2008	2.4
2009	-0.5
2010	0
2011	-0.01912