1919 1
1920 3
1922 2
1923 1
1925 2
1926 1
1927 2
1928 2
1930 2
1931 5
1932 3
1933 6
1934 3
1935 4
1936 5
1937 2
1938 4
1939 6
1940 10
1941 12
1942 2
1943 3
1944 10
1945 6
1946 6
1947 7
1948 6
1949 5
1950 6
1951 8
1952 2
1953 6
1954 8
1955 9
1956 9
1957 8
1958 6
1959 10
1960 17
1961 6
1962 11
1963 14
1964 16
1965 13
1966 6
1967 10
1968 14
1969 9
1970 6
1971 13
1972 10
1973 18
1974 8
1975 7
1976 13
1977 12
1978 5
1979 14
1980 12
1981 15
1982 16
1983 11
1984 20
1985 31
1986 31
1987 29
1988 36
1989 40
1990 32
1991 25
1992 33
1993 36
1994 49
1995 46
1996 49
1997 54
1998 59
1999 79
2000 68
2001 82
2002 84
2003 62
2004 65
2005 54
2006 50
2007 51
2008 36
2009 15
2010 4