1901    0.1358
1902    0.9670
1903    0.4709
1904    0.4548
1905    1.2640
1906    0.8679
1907    0.5768
1908    0.2655
1909   -0.4394
1910   -0.4654
1911   -0.7324
1912    0.3542
1913    0.3110
1914   -0.1941
1915    0.3650
1916   -1.2769
1917   -0.8294
1918    0.1001
1919   -0.1428
1920   -0.7020
1921   -0.9102
1922   -0.7433
1923    0.1128
1924   -0.5007
1925    0.0048
1926    1.8221
1927    0.1465
1928    0.0477
1929    0.4807
1930    0.3849
1931    1.1311
1932   -0.3365
1933   -1.4247
1934    0.7140
1935    0.4048
1936    1.3805
1937   -0.0441
1938    0.1150
1939   -0.2049
1940    1.7601
1941    2.3380
1942    0.7304
1943   -0.0402
1944   -0.5005
1945   -0.1381
1946   -0.2540
1947    0.5128
1948   -0.6260
1949   -1.4835
1950   -1.7459
1951   -0.5980
1952   -1.0992
1953   -0.3591
1954   -0.0562
1955   -1.8390
1956   -1.5763
1957    0.3707
1958    0.8657
1959    0.5366
1960    0.1947
1961   -0.2780
1962   -0.9635
1963   -0.1326
1964   -0.7986
1965   -0.2079
1966   -0.3224
1967   -0.5374
1968   -0.0176
1969   -0.1914
1970   -0.2986
1971   -1.3758
1972   -1.1182
1973   -0.9046
1974   -0.2579
1975   -1.3160
1976   -0.2450
1977    0.2519
1978    0.2131
1979    0.2750
1980    0.4146
1981    1.0098
1982   -0.1086
1983    1.2189
1984    0.7825
1985    0.1431
1986    1.1626
1987    1.2572
1988    0.2037
1989   -0.2365
1990   -0.3935
1991   -0.5269
1992    0.8784
1993    1.1015
1994   -0.2369
1995    0.5929
1996    0.7947
1997    1.3842
1998   -0.0441
1999   -1.4465
2000   -0.6500
2001   -0.6562
2002   -0.1883
2003    0.5305
2004    0.0940
2005    0.1411
2006   -0.0590
2007   -0.4126
2008   -1.2108
2009   -0.6290
2010   -0.7844
2011   -1.6020
2012   -1.3522
2013   -0.7440
2014    0.9973
2015    1.4544
2016    1.1394
2017    0.3222
2018    0.0484
2019    0.4778
2020   -0.3840
2021   -1.1429
2022   -1.2009