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	0.8101
1822	0.8077
1823	0.8321
1824	0.803
1825	0.8272
1826	0.7983
1827	0.8223
1828	0.8199
1829	0.7915
1830	0.8151
1831	0.8128
1832	0.836
1833	0.8079
1834	0.8056
1835	0.8285
1836	0.8009
1837	0.8236
1838	0.7963
1839	0.8188
1840	0.8164
1841	0.814
1842	0.8116
1843	0.8093
1844	0.8311
1845	0.8045
1846	0.8261
1847	0.7999
1848	0.8213
1849	0.8188
1850	0.793
1851	0.8141
1852	0.8349
1853	0.8093
1854	0.807
1855	0.8047
1856	0.8251
1857	0.8226
1858	0.7977
1859	0.8179
1860	0.8154
1861	0.8131
1862	0.8107
1863	0.8083
1864	0.8279
1865	0.8036
1866	0.823
1867	0.8205
1868	0.7967
1869	0.8158
1870	0.8134
1871	0.811
1872	0.8297
1873	0.8063
1874	0.804
1875	0.8224
1876	0.82
1877	0.8175
1878	0.8151
1879	0.8127
1880	0.8104
1881	0.808
1882	0.8057
1883	0.8234
1884	0.8209
1885	0.7987
1886	0.8161
1887	0.8138
1888	0.8114
1889	0.8284
1890	0.8066
1891	0.8043
1892	0.8211
1893	0.8187
1894	0.8163
1895	0.8139
1896	0.8115
1897	0.8091
1898	0.8068
1899	0.823
1900	0.8205
1901	0.7998
1902	0.8157
1903	0.8133
1904	0.811
1905	0.8265
1906	0.8062
1907	0.8217
1908	0.8016
1909	0.8169
1910	0.8145
1911	0.8121
1912	0.8271
1913	0.8073
1914	2.564
1915	2.579
1916	2.577
1917	2.574
1918	2.572
1919	2.57
1920	2.567
1921	2.582
1922	2.579
1923	2.56
1924	2.574
1925	2.572
1926	2.586
1927	2.567
1928	2.581
1929	2.562
1930	2.576
1931	2.574
1932	2.571
1933	2.569
1934	2.582
1935	2.564
1936	2.578
1937	2.575
1938	2.573
1939	2.57
1940	2.583
1941	2.565
1942	2.578
1943	2.576
1944	2.573
1945	2.571
1946	2.569
1947	2.581
1948	2.564
1949	2.576
1950	2.574
1951	2.744
1952	3.645
1953	4.049
1954	4.11
1955	3.951
1956	3.711
1957	3.459
1958	3.297
1959	3.278
1960	3.368
1961	3.488
1962	3.508
1963	3.287
1964	2.763
1965	2.05
1966	1.299
1967	0.6922
1968	0.3079
1969	0.3163
1970	0.5868
1971	0.9345
1972	1.301
1973	1.89
1974	1.447
1975	2.432
1976	3.427
1977	4.252
1978	4.77
1979	4.971
1980	4.903
1981	4.826
1982	4.69
1983	4.277
1984	3.56
1985	2.677
1986	1.736
1987	0.9327
1988	0.3845
1989	0.2035
1990	0.283
1991	1.881
1992	1.961
1993	2.055
1994	2.111
1995	2.145
1996	2.208
1997	2.269
1998	2.251
1999	2.113
2000	1.907
2001	1.675
2002	5.268
2003	5.071
2004	4.879
2005	4.736
2006	3.716