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	0.7042
1822	0.7081
1823	0.7041
1824	0.708
1825	0.7041
1826	0.708
1827	0.704
1828	0.708
1829	0.704
1830	0.7079
1831	0.704
1832	0.7079
1833	0.7039
1834	0.7078
1835	0.7039
1836	0.7078
1837	0.7039
1838	0.7077
1839	0.7077
1840	0.7038
1841	0.7077
1842	0.7038
1843	0.7076
1844	0.7037
1845	0.7076
1846	0.7076
1847	0.7037
1848	0.7075
1849	0.7036
1850	0.7075
1851	0.7075
1852	0.7036
1853	0.7074
1854	0.7035
1855	0.7074
1856	0.7074
1857	0.7035
1858	0.7073
1859	0.7073
1860	0.7034
1861	0.7073
1862	0.2659
1863	0.2682
1864	0.2667
1865	0.2651
1866	0.2675
1867	0.266
1868	0.2684
1869	0.2668
1870	0.2653
1871	0.2677
1872	1.438
1873	1.44
1874	1.438
1875	1.44
1876	1.438
1877	1.436
1878	1.441
1879	1.439
1880	1.437
1881	1.438
1882	2.063
1883	2.058
1884	2.064
1885	2.059
1886	2.061
1887	2.059
1888	2.061
1889	2.062
1890	2.063
1891	2.06
1892	2.456
1893	2.46
1894	2.457
1895	2.456
1896	2.458
1897	2.459
1898	2.457
1899	2.46
1900	2.456
1901	2.458
1902	1.45
1903	1.446
1904	1.451
1905	1.447
1906	1.449
1907	1.448
1908	1.447
1909	1.449
1910	1.448
1911	1.45
1912	1.854
1913	1.852
1914	2.694
1915	2.692
1916	2.69
1917	2.693
1918	2.693
1919	2.69
1920	2.692
1921	2.692
1922	2.768
1923	2.768
1924	2.767
1925	2.767
1926	2.768
1927	2.769
1928	2.768
1929	2.766
1930	2.769
1931	2.767
1932	2.48
1933	2.481
1934	2.479
1935	2.481
1936	2.479
1937	2.481
1938	2.481
1939	2.478
1940	2.48
1941	2.481
1942	2.479
1943	2.48
1944	2.481
1945	2.48
1946	2.479
1947	5.509
1948	5.508
1949	5.51
1950	5.51
1951	4.025
1952	3.809
1953	3.711
1954	3.696
1955	3.725
1956	3.774
1957	3.812
1958	3.824
1959	3.797
1960	3.736
1961	4.246
1962	4.055
1963	4.131
1964	4.458
1965	4.814
1966	5.041
1967	5.488
1968	8.157
1969	5.935
1970	5.585
1971	4.674
1972	10.99
1973	5.928
1974	13.75
1975	3.264
1976	-0.8189
1977	5.201
1978	6.443
1979	6.289
1980	14.38
1981	1.081
1982	-0.09307
1983	-1.127
1984	1.863
1985	1.44
1986	4.896
1987	11.14
1988	9.335
1989	14.07
1990	10.31
1991	12
1992	12.41
1993	6.209
1994	0.3466
1995	0.5838
1996	1.958
1997	2.65
1998	2.601
1999	9.068
2000	11.94
2001	4.357
2002	4.374
2003	8.4
2004	3.644
2005	2.069
2006	4.478
2007	-1.41
2008	3.503
2009	0.4953
2010	3.265
2011	2.272
2012	4.369
2013	1.839