1935 0
1936 0
1937 0
1938 0
1939 0
1940 0
1941 0
1942 0
1943 0
1944 0
1945 0
1946 0
1947 0
1948 0
1949 0
1950 0
1951 0
1952 0
1953 0
1954 0
1955 0
1956 0
1957 0
1958 0
1959 0
1960 0
1961 0
1962 0
1963 0
1964 0
1965 0
1966 0
1967 0
1968 0
1969 0
1970 0
1971 0
1972 0
1973 0
1974 0
1975 0.08
1976 0.064
1977 0.059
1978 0.065
1979 0.099
1980 0.143
1981 0.112
1982 0.074
1983 0.035
1984 0.035
1985 0.031
1986 0.013
1987 0.042
1988 0.04
1989 0.047
1990 0.054
1991 0.037
1992 0.03
1993 0.026
1994 0.028
1995 0.026
1996 0.029
1997 0.021
1998 0.013
1999 0.025
2000 0.035
2001 0.026
2002 0.014
2003 0.021
2004 0.027
2005 0.041
2006 0.033
2007 0.023
2008 0.058
2009 0.000
2010 0.000
2011 0.036
2012 0.017
2013 0.015
2014 0.017
2015 0.000 
2016 0.003
2017 0.02
2018 0.028
2019 0.016
2020 0.013
2021 0.059
2022 0.087
2023 0.032
2024 0.025