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	0.9349
1822	0.938
1823	0.9343
1824	0.9373
1825	0.9369
1826	0.9332
1827	0.9361
1828	0.9356
1829	0.9384
1830	0.9347
1831	0.9374
1832	0.9337
1833	0.9364
1834	0.9358
1835	0.9353
1836	0.9378
1837	0.9341
1838	0.9365
1839	0.9359
1840	0.9383
1841	0.9345
1842	0.9368
1843	0.9361
1844	0.9354
1845	0.9346
1846	0.9368
1847	0.936
1848	0.9352
1849	0.9373
1850	0.9364
1851	0.9355
1852	0.9347
1853	0.9366
1854	0.9357
1855	0.9375
1856	0.9338
1857	0.9356
1858	0.9373
1859	0.9363
1860	0.9353
1861	0.937
1862	0.9359
1863	0.9349
1864	0.9364
1865	0.9353
1866	0.9368
1867	0.9357
1868	0.9345
1869	0.936
1870	0.9373
1871	0.9361
1872	0.9349
1873	0.9362
1874	0.9374
1875	0.9337
1876	0.9374
1877	0.9361
1878	0.9348
1879	0.9359
1880	0.9369
1881	0.9356
1882	0.9366
1883	0.9352
1884	0.9362
1885	0.9371
1886	0.9357
1887	0.9343
1888	0.9374
1889	0.9359
1890	0.9345
1891	0.9375
1892	0.936
1893	0.9345
1894	0.9374
1895	0.9358
1896	0.9364
1897	0.9349
1898	0.9355
1899	0.936
1900	0.9365
1901	0.9349
1902	0.9375
1903	0.9358
1904	0.9363
1905	0.9346
1906	0.937
1907	0.9353
1908	0.9356
1909	0.9359
1910	0.9362
1911	0.9365
1912	0.9347
1913	0.9369
1914	6.179
1915	6.181
1916	6.179
1917	6.179
1918	6.181
1919	6.179
1920	6.179
1921	6.179
1922	6.179
1923	6.179
1924	6.179
1925	6.181
1926	6.179
1927	6.179
1928	6.181
1929	6.178
1930	6.18
1931	6.18
1932	6.18
1933	6.179
1934	6.179
1935	6.179
1936	6.18
1937	6.178
1938	6.18
1939	6.181
1940	6.179
1941	6.18
1942	6.178
1943	6.181
1944	6.179
1945	6.18
1946	6.179
1947	6.18
1948	6.178
1949	6.179
1950	6.18
1951	4.666
1952	5.806
1953	6.697
1954	7.368
1955	7.848
1956	8.18
1957	8.417
1958	8.589
1959	8.734
1960	8.859
1961	8.954
1962	8.996
1963	8.958
1964	8.833
1965	8.675
1966	-3.657
1967	5.103
1968	13.58
1969	14.98
1970	30.38
1971	6.982
1972	3.379
1973	-11.21
1974	12.68
1975	6.492
1976	2.306
1977	1.919
1978	9.841
1979	-13.59
1980	-0.406
1981	-7.009
1982	2.381
1983	-2.031
1984	1.747
1985	4.435
1986	-1.063
1987	5.611
1988	34.49
1989	10.89
1990	3.509
1991	4.81
1992	0.4323
1993	0.4424
1994	2.51
1995	5.868
1996	0.3866
1997	1.95
1998	-3.244
1999	0.8706
2000	2.076
2001	0.4432
2002	0.4496
2003	0.1583
2004	0.8395
2005	0.852
2006	5.7
2007	4.2
2008	1.4
2009	2.4
2010	3.46
2011	3.432