Year	Total
1901	-0.2697
1902	2.353
1903	-1.246
1904	0.3933
1905	2.762
1906	3.122
1907	1.692
1908	-4.278
1909	2.046
1910	2.896
1911	2.801
1912	1.789
1913	4.017
1914	0.7811
1915	8.048
1916	2.49
1917	1.343
1918	1.37
1919	-10.2
1920	-6.006
1921	-1.748
1922	5.144
1923	3.322
1924	4.069
1925	5.232
1926	-3.418
1927	8.384
1928	1.455
1929	3.409
1930	-0.4838
1931	-4.937
1932	0.8509
1933	3.186
1934	6.953
1935	4.097
1936	4.758
1937	3.702
1938	1.449
1939	0.5929
1940	10.2
1941	9.845
1942	2.773
1943	2.039
1944	-3.738
1945	-4.088
1946	-3.775
1947	-1.445
1948	2.811
1949	3.793
1950	0.4233
1951	2.674
1952	-1.103
1953	2.375
1954	2.08
1955	1.355
1956	-1.22
1957	-0.8431
1958	-2.358
1959	2.046
1960	4.065
1961	2.26
1962	0.5704
1963	4.282
1964	6.128
1965	3.749
1966	3.497
1967	4.048
1968	6.124
1969	3.723
1970	4.172
1971	3.408
1972	4.741
1973	7.865
1974	-0.102
1975	1.302
1976	3.87
1977	3.925
1978	5.208
1979	3.868
1980	-1.141
1981	-1.393
1982	1.139
1983	2.813
1984	2.04
1985	2.956
1986	21.43
1987	10.32
1988	12.6
1989	7.393
1990	4.217
1991	1.045
1992	0.305
1993	1.843
1994	3.355
1995	3.945
1996	7.758
1997	8.962
1998	14.06
1999	14.2
2000	5.638
2001	5.474
2002	5.806
2003	6.156
2004	4.992
2005	5.704
2006	4.713
2007	6.904