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	1.486
1822	1.439
1823	1.473
1824	1.467
1825	1.46
1826	1.494
1827	1.448
1828	1.48
1829	1.474
1830	1.467
1831	1.461
1832	1.455
1833	1.486
1834	1.479
1835	1.436
1836	1.466
1837	1.496
1838	1.453
1839	1.483
1840	1.441
1841	1.47
1842	1.464
1843	1.492
1844	1.451
1845	1.479
1846	1.472
1847	1.466
1848	1.459
1849	1.486
1850	1.446
1851	1.473
1852	1.466
1853	1.46
1854	1.485
1855	1.479
1856	1.441
1857	1.497
1858	1.459
1859	1.453
1860	1.477
1861	1.47
1862	1.464
1863	1.458
1864	1.481
1865	1.474
1866	1.467
1867	1.461
1868	1.455
1869	1.477
1870	1.47
1871	1.464
1872	1.485
1873	1.451
1874	1.472
1875	1.465
1876	1.485
1877	1.452
1878	1.472
1879	1.466
1880	1.459
1881	1.479
1882	1.472
1883	1.466
1884	1.459
1885	1.478
1886	1.471
1887	1.465
1888	1.458
1889	1.476
1890	1.469
1891	1.463
1892	1.995
1893	2.001
1894	2.006
1895	1.988
1896	2.015
1897	1.997
1898	2.001
1899	1.984
1900	2.009
1901	1.991
1902	1.994
1903	1.997
1904	1.999
1905	2.002
1906	2.003
1907	2.005
1908	1.987
1909	2.007
1910	2.008
1911	1.99
1912	0.1036
1913	0.1185
1914	3.892
1915	3.908
1916	3.905
1917	3.901
1918	3.898
1919	3.914
1920	3.892
1921	3.908
1922	5.6
1923	5.588
1924	5.596
1925	5.603
1926	5.591
1927	5.598
1928	5.586
1929	5.611
1930	5.581
1931	5.605
1932	5.593
1933	5.599
1934	5.587
1935	5.61
1936	5.58
1937	5.603
1938	5.591
1939	5.595
1940	5.6
1941	5.604
1942	5.592
1943	5.596
1944	3.822
1945	3.833
1946	3.814
1947	3.825
1948	3.837
1949	3.817
1950	3.829
1951	2.066
1952	4.177
1953	5.949
1954	7.33
1955	8.233
1956	8.707
1957	8.826
1958	8.595
1959	8.15
1960	7.533
1961	6.865
1962	6.257
1963	5.792
1964	5.555
1965	5.556
1966	5.509
1967	5.523
1968	5.972
1969	6.96
1970	8.206
1971	3.689
1972	8.683
1973	14.88
1974	10.34
1975	10.14
1976	10.03
1977	9.947
1978	9.843
1979	9.882
1980	9.892
1981	9.95
1982	9.975
1983	13.25
1984	7.633
1985	3.699
1986	8.131
1987	9.666
1988	14.59
1989	9.178
1990	13.5
1991	1.636
1992	3.398
1993	5.051
1994	5.356
1995	4.636
1996	4.479
1997	4.776
1998	5.366
1999	3.756
2000	2.398
2001	3.092
2002	5.061
2003	5.484
2004	3.768
2005	8.514
2006	4.601
2007	3.164
2008	-0.4529
2009	-7.814
2010	-3.348
2011	1.067