1880  -0.1151
1881   0.0214
1882  -0.1541
1883  -0.1016
1884  -0.1954
1885  -0.1970
1886   0.0381
1887  -0.0313
1888   0.0795
1889  -0.0406
1890  -0.0521
1891  -0.0630
1892   0.0075
1893   0.0074
1894   0.0341
1895  -0.1890
1896   0.0355
1897   0.0521
1898   0.0853
1899   0.0915
1900   0.0999
1901   0.0653
1902   0.0855
1903   0.0326
1904  -0.1275
1905  -0.1442
1906  -0.1070
1907  -0.0702
1908  -0.0508
1909   0.1270
1910   0.0468
1911   0.0612
1912  -0.0507
1913  -0.1569
1914  -0.1676
1915  -0.0446
1916   0.1231
1917   0.0451
1918  -0.0168
1919  -0.0290
1920  -0.1165
1921  -0.0682
1922  -0.0820
1923  -0.1571
1924  -0.0402
1925   0.0129
1926   0.0506
1927   0.2242
1928   0.1509
1929   0.1669
1930   0.0178
1931   0.2452
1932   0.3247
1933   0.3995
1934   0.2839
1935   0.2025
1936   0.2300
1937   0.2144
1938   0.3575
1939   0.1760
1940   0.2262
1941   0.1888
1942   0.0962
1943   0.0188
1944   0.0764
1945   0.2248
1946   0.0553
1947  -0.0850
1948  -0.0068
1949   0.0950
1950   0.1235
1951   0.1372
1952   0.1556
1953   0.2266
1954   0.1772
1955   0.1589
1956   0.2424
1957  -0.0739
1958   0.0919
1959  -0.0108
1960   0.0479
1961   0.1114
1962   0.0690
1963   0.0065
1964  -0.0647
1965  -0.0303
1966  -0.0588
1967  -0.0205
1968  -0.0953
1969  -0.1308
1970  -0.1058
1971  -0.1435
1972  -0.2620
1973  -0.3540
1974  -0.1829
1975  -0.2835
1976  -0.1465
1977  -0.2237
1978  -0.1485
1979  -0.1489
1980  -0.0875
1981  -0.0774
1982  -0.1031
1983  -0.2724
1984  -0.1317
1985  -0.2699
1986  -0.2595
1987  -0.2231
1988  -0.0609
1989  -0.1194
1990  -0.1619
1991  -0.2233
1992  -0.2887
1993  -0.2986
1994  -0.3086
1995  -0.1120
1996  -0.0405
1997  -0.1414
1998  -0.1054
1999   0.0999
2000   0.0415
2001  -0.0927
2002  -0.0282
2003  -0.1330
2004   0.0718
2005   0.0890
2006   0.1577
2007   0.1356
2008   0.1543
2009  -0.0419
2010   0.0454