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	1.363
1822	1.358
1823	1.384
1824	1.349
1825	1.374
1826	1.369
1827	1.364
1828	1.359
1829	1.354
1830	1.349
1831	1.373
1832	1.368
1833	1.363
1834	1.358
1835	1.381
1836	1.349
1837	1.371
1838	1.366
1839	1.361
1840	1.356
1841	1.378
1842	1.347
1843	1.368
1844	1.363
1845	1.359
1846	1.379
1847	1.349
1848	1.369
1849	1.365
1850	1.36
1851	1.355
1852	1.375
1853	1.37
1854	1.365
1855	1.36
1856	1.355
1857	1.374
1858	1.369
1859	1.364
1860	1.359
1861	1.354
1862	1.373
1863	1.368
1864	1.363
1865	1.358
1866	1.353
1867	1.37
1868	1.365
1869	1.361
1870	1.356
1871	1.373
1872	0.6608
1873	0.6608
1874	0.6608
1875	0.6608
1876	0.6608
1877	0.6608
1878	0.6608
1879	0.6608
1880	0.6608
1881	0.6608
1882	0.6608
1883	0.6608
1884	0.6608
1885	0.6608
1886	0.6608
1887	0.6608
1888	0.6608
1889	0.6608
1890	0.6608
1891	0.6608
1892	1.882
1893	1.867
1894	1.874
1895	1.88
1896	1.886
1897	1.871
1898	1.876
1899	1.882
1900	1.886
1901	1.872
1902	1.212
1903	1.227
1904	1.206
1905	1.221
1906	1.218
1907	1.215
1908	1.212
1909	1.227
1910	1.206
1911	1.221
1912	0.481
1913	0.4807
1914	1.808
1915	1.807
1916	1.807
1917	1.807
1918	1.806
1919	1.806
1920	1.806
1921	1.805
1922	2.473
1923	2.47
1924	2.468
1925	2.484
1926	2.464
1927	2.48
1928	2.459
1929	2.475
1930	2.473
1931	2.47
1932	2.468
1933	2.484
1934	2.464
1935	2.479
1936	2.459
1937	2.474
1938	2.472
1939	2.47
1940	2.468
1941	2.482
1942	2.463
1943	2.478
1944	-0.7348
1945	-0.7237
1946	-0.745
1947	-0.7297
1948	-0.7297
1949	-0.7468
1950	-0.724
1951	0.7174
1952	1.847
1953	2.79
1954	3.576
1955	4.073
1956	4.345
1957	4.369
1958	4.165
1959	3.789
1960	3.217
1961	2.632
1962	2.026
1963	1.619
1964	1.351
1965	1.347
1966	1.271
1967	1.266
1968	1.516
1969	2.174
1970	3.07
1971	10.66
1972	10.65
1973	10.67
1974	10.66
1975	10.66
1976	10.66
1977	10.66
1978	10.67
1979	10.64
1980	10.68
1981	10.65
1982	10.62
1983	10.65
1984	10.69
1985	10.68
1986	10.61
1987	10.46
1988	10.73
1989	11.1
1990	10.45
1991	10.45
1992	10.12
1993	12.15
1994	12.88
1995	6.806
1996	8.44
1997	6.138
1998	10.05
1999	9.396
2000	7.387
2001	11.23
2002	5.987
2003	14.79
2004	16.65
2005	19.25
2006	17.89
2007	9.484
2008	9.261
2009	-11.09
2010	7.476
2011	6.147