1910    19.420
1911    39.060
1912    16.880
1913    12.640
1914    22.220
1915    22.140
1916    36.240
1917    19.040
1918     6.720
1919    19.120
1920    15.220
1921    11.320
1922    27.700
1923    18.820
1924    40.860
1925     4.880
1926    41.680
1927    13.540
1928    13.420
1929    28.540
1930    12.420
1931    14.880
1932    19.460
1933    20.880
1934    35.900
1935     6.000
1936    20.320
1937     9.580
1938    20.960
1939    24.860
1940    28.120
1941    44.220
1942     8.120
1943     8.680
1944    16.280
1945    11.420
1946    15.760
1947     9.020
1948    28.300
1949    14.900
1950    22.740
1951    10.160
1952    15.080
1953    11.700
1954    24.220
1955    25.580
1956     9.600
1957    16.000
1958    20.720
1959    55.440
1960     9.300
1961     7.420
1962    27.160
1963     8.440
1964     4.060
1965    19.340
1966    15.100
1967     4.640
1968     0.000
1969    15.960
1970    10.840
1971    13.760
1972     3.440
1973    19.000
1974    13.060
1975    15.220
1976    18.240
1977    18.540
1978    14.300
1979    11.240
1980    11.940
1981    28.240
1982    49.180
1983    62.100
1984    19.160
1985     9.040
1986    25.120
1987    15.340
1988    12.660
1989    11.340
1990    20.780
1991     7.300
1992    28.980
1993     6.720
1994     0.000
1995    39.120
1996    58.620
1997    40.180
1998    48.380
1999     2.220
2000    11.660
2001    22.940
2002    28.520
2003    28.520
2004    27.340
2005    40.480
2006    20.120
2007    30.460
2008    27.120
2009    11.480
2010    23.940
2011     9.460
2012    44.380