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	0.7822
1822	0.7843
1823	0.7863
1824	0.7815
1825	0.7868
1826	0.7821
1827	0.784
1828	0.7827
1829	0.7846
1830	0.7865
1831	0.7818
1832	0.7837
1833	0.7856
1834	0.7842
1835	0.7828
1836	0.7847
1837	0.7833
1838	0.7851
1839	0.7837
1840	0.7823
1841	0.7841
1842	0.7827
1843	0.7845
1844	0.7862
1845	0.7817
1846	0.7834
1847	0.7852
1848	0.7838
1849	0.7855
1850	0.7841
1851	0.7827
1852	0.1028
1853	0.1018
1854	0.1009
1855	0.09991
1856	0.102
1857	0.1011
1858	0.1032
1859	0.1023
1860	0.1013
1861	0.1004
1862	2.152
1863	2.15
1864	2.15
1865	2.15
1866	2.15
1867	2.152
1868	2.151
1869	2.149
1870	2.152
1871	2.149
1872	1.419
1873	1.42
1874	1.42
1875	1.42
1876	1.42
1877	1.42
1878	1.42
1879	1.42
1880	1.42
1881	1.419
1882	2.772
1883	2.774
1884	2.774
1885	2.773
1886	2.774
1887	2.772
1888	2.772
1889	2.775
1890	2.772
1891	2.774
1892	2.161
1893	2.16
1894	2.162
1895	2.16
1896	2.16
1897	2.162
1898	2.161
1899	2.159
1900	2.161
1901	2.161
1902	1.03
1903	1.029
1904	1.03
1905	1.031
1906	1.029
1907	1.03
1908	1.031
1909	1.03
1910	1.031
1911	1.03
1912	0.2587
1913	0.26
1914	0.2583
1915	0.2595
1916	0.2593
1917	0.2591
1918	0.2589
1919	0.2601
1920	0.2584
1921	0.2597
1922	0.76
1923	0.7603
1924	0.7606
1925	0.7594
1926	0.7612
1927	0.7599
1928	0.7602
1929	0.7605
1930	0.7593
1931	0.761
1932	0.7598
1933	0.76
1934	0.7603
1935	0.7605
1936	0.7593
1937	0.761
1938	0.7597
1939	0.76
1940	0.7602
1941	0.7604
1942	0.7606
1943	0.7594
1944	0.761
1945	0.7598
1946	0.7599
1947	2.003
1948	2.001
1949	2.002
1950	2.002
1951	2.221
1952	2.969
1953	3.577
1954	4.036
1955	4.352
1956	4.531
1957	4.585
1958	4.53
1959	4.382
1960	4.159
1961	3.89
1962	3.603
1963	3.327
1964	3.078
1965	2.853
1966	2.619
1967	2.382
1968	2.199
1969	2.085
1970	2.021
1971	7.004
1972	7.483
1973	8.721
1974	6.402
1975	3.007
1976	9.007
1977	5.711
1978	8.13
1979	2.384
1980	0.1707
1981	1.666
1982	3.048
1983	1.615
1984	5.291
1985	6.191
1986	9.832
1987	9.308
1988	2.422
1989	5.879
1990	5.447
1991	3.914
1992	1.455
1993	-0.8665
1994	3.701
1995	3.3
1996	2.966
1997	4.373
1998	13.29
1999	7.707
2000	6.532
2001	-3.671
2002	0.7665
2003	6.185
2004	-6.373
2005	10.59
2006	-3.993
2007	6.123
2008	0.9482
2009	-6.659
2010	-0.3523
2011	0.8612
2012	-1.738
2013	1.588