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	0.5601
1822	0.559
1823	0.558
1824	0.5592
1825	0.5581
1826	0.5593
1827	0.5605
1828	0.5571
1829	0.5605
1830	0.5593
1831	0.5581
1832	0.5592
1833	0.558
1834	0.559
1835	0.56
1836	0.5587
1837	0.5596
1838	0.5584
1839	0.5592
1840	0.5601
1841	0.5587
1842	0.5595
1843	0.5582
1844	0.559
1845	0.5597
1846	0.5583
1847	0.559
1848	0.5596
1849	0.5582
1850	0.5588
1851	0.5594
1852	0.5599
1853	0.5585
1854	0.559
1855	0.5595
1856	0.558
1857	0.5604
1858	0.5589
1859	0.5593
1860	0.5577
1861	0.56
1862	0.5584
1863	0.5587
1864	0.559
1865	0.5593
1866	0.5595
1867	0.5597
1868	0.5581
1869	0.5583
1870	0.5603
1871	0.5586
1872	0.5587
1873	0.5588
1874	0.5589
1875	0.559
1876	0.559
1877	0.5607
1878	0.559
1879	0.559
1880	0.5589
1881	0.5589
1882	0.5588
1883	0.5587
1884	0.5586
1885	0.56
1886	0.5583
1887	0.5597
1888	0.5595
1889	0.5593
1890	0.559
1891	0.5588
1892	0.5585
1893	0.5598
1894	0.5579
1895	0.5591
1896	0.5588
1897	0.5599
1898	0.5581
1899	0.5592
1900	0.5602
1901	0.5583
1902	0.5593
1903	0.5589
1904	0.5584
1905	0.5594
1906	0.5588
1907	0.5597
1908	0.5592
1909	0.5586
1910	0.5594
1911	0.5588
1912	-0.3068
1913	-0.3062
1914	-0.3056
1915	-0.3064
1916	-0.3058
1917	-0.3066
1918	-0.306
1919	-0.3054
1920	-0.3076
1921	-0.3055
1922	1.192
1923	1.191
1924	1.192
1925	1.191
1926	1.192
1927	1.192
1928	1.192
1929	1.192
1930	1.191
1931	1.192
1932	0.2243
1933	0.2237
1934	0.2231
1935	0.2237
1936	0.2244
1937	0.2238
1938	0.2231
1939	0.2238
1940	0.2244
1941	0.2238
1942	0.2232
1943	0.2238
1944	0.2244
1945	0.2238
1946	0.2231
1947	-0.8601
1948	-0.861
1949	-0.8606
1950	-0.8602
1951	1.278
1952	1.277
1953	1.278
1954	4.018
1955	3.396
1956	4.525
1957	4.612
1958	4.685
1959	4.772
1960	4.871
1961	4.961
1962	5.011
1963	4.99
1964	4.883
1965	4.737
1966	4.551
1967	4.416
1968	4.427
1969	4.62
1970	4.924
1971	5.929
1972	3.329
1973	2.527
1974	6.528
1975	-7.547
1976	0.7732
1977	11.18
1978	14.52
1979	10.61
1980	18.79
1981	12.23
1982	-2.436
1983	17
1984	27.68
1985	13.45
1986	9.629
1987	8.985
1988	8.719
1989	9.145
1990	16.05
1991	7.386
1992	5.921
1993	5.807
1994	6.327
1995	6.858
1996	8.659
1997	11.43
1998	9.268
1999	7.778
2000	4.413
2001	3.287
2002	6.144
2003	9.253
2004	11.27
2005	-5.144
2006	19.16
2007	9.908
2008	11.98
2009	-3.959
2010	6.691
2011	6.681
2012	0.5244
2013	3.363