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	1.662
1822	1.652
1823	1.661
1824	1.651
1825	1.66
1826	1.668
1827	1.659
1828	1.649
1829	1.657
1830	1.665
1831	1.655
1832	1.662
1833	1.653
1834	1.66
1835	1.667
1836	1.657
1837	1.647
1838	1.67
1839	1.66
1840	1.65
1841	1.656
1842	1.662
1843	1.652
1844	1.658
1845	1.663
1846	1.654
1847	1.659
1848	1.664
1849	1.654
1850	1.659
1851	1.663
1852	1.341
1853	1.351
1854	1.346
1855	1.355
1856	1.351
1857	1.346
1858	1.341
1859	1.35
1860	1.346
1861	1.354
1862	2.025
1863	2.033
1864	2.04
1865	2.022
1866	2.029
1867	2.035
1868	2.029
1869	2.034
1870	2.028
1871	2.033
1872	2.072
1873	2.076
1874	2.067
1875	2.07
1876	2.073
1877	2.075
1878	2.076
1879	2.067
1880	2.079
1881	2.069
1882	2.513
1883	2.509
1884	2.515
1885	2.519
1886	2.504
1887	2.517
1888	2.511
1889	2.513
1890	2.514
1891	2.515
1892	0.6608
1893	0.6608
1894	0.6608
1895	0.6608
1896	0.6608
1897	0.6608
1898	0.6608
1899	0.6608
1900	0.6608
1901	0.6608
1902	0.6608
1903	0.6608
1904	0.6608
1905	0.6608
1906	0.6608
1907	0.6608
1908	0.6608
1909	0.6608
1910	0.6608
1911	0.6608
1912	0.6608
1913	0.6608
1914	2.903
1915	2.903
1916	2.903
1917	2.903
1918	2.903
1919	2.903
1920	2.903
1921	2.903
1922	3.537
1923	3.542
1924	3.538
1925	3.542
1926	3.538
1927	3.534
1928	3.539
1929	3.543
1930	3.539
1931	3.535
1932	3.539
1933	3.544
1934	3.54
1935	3.536
1936	3.54
1937	3.536
1938	3.54
1939	3.543
1940	3.539
1941	3.536
1942	3.539
1943	3.535
1944	3.539
1945	3.542
1946	3.539
1947	2.013
1948	2.005
1949	2.012
1950	2.012
1951	7.446
1952	5.548
1953	3.862
1954	2.367
1955	1.098
1956	0.05712
1957	-0.6461
1958	-0.957
1959	-0.7407
1960	-0.03968
1961	1.048
1962	2.175
1963	2.981
1964	3.182
1965	2.946
1966	2.616
1967	2.449
1968	2.368
1969	2.471
1970	2.708
1971	2.363
1972	1.703
1973	2.455
1974	3.953
1975	4.981
1976	-1.292
1977	-1.283
1978	6.222
1979	11.74
1980	10.2
1981	3.005
1982	4.125
1983	-2.819
1984	1.676
1985	5.971
1986	2.929
1987	4.02
1988	9.79
1989	7.789
1990	14.28
1991	-20.9
1992	2.669
1993	2.505
1994	0.8806
1995	-7.76
1996	-21.37
1997	-20.04
1998	-10.11
1999	-9.151
2000	-3.651
2001	-6.914
2002	6.568
2003	-3.065
2004	6.793
2005	0.4621
2006	1.14
2007	4.48
2008	3.254
2009	0.3758
2010	-3.839
2011	1.759