| #1918 | 4 |
| #1919 | 4 |
| #1920 | 5 |
| #1921 | 3 |
| #1922 | 4 |
| #1923 | 4 |
| #1924 | 4 |
| #1925 | 4 |
| #1926 | 0 |
| #1927 | 0 |
| #1928 | 0 |
| #1929 | 0 |
| #1930 | 4.35 |
| #1932 | 3.67 |
| #1933 | 3.78 |
| #1934 | 3.5 |
| #1935 | 0 |
| #1937 | 2.67 |
| #1938 | 3.81 |
| #1939 | 3.92 |
| #1940 | 0 |
| #1941 | 5 |
| #1942 | 4.5 |
| #1943 | 4.5 |
| #1944 | 4.5 |
| #1945 | 0 |
| #1946 | 0 |
| #1947 | 3.67 |
| #1949 | 4 |
| #1950 | 3 |
| #1951 | 0 |
| #1952 | 3.79 |
| #1953 | 4 |
| #1954 | 4.57 |
| #1955 | 0 |
| #1956 | 0 |
| #1957 | 3.61 |
| #1958 | 4.03 |
| #1959 | 3.65 |
| #1960 | 3 |
| #1961 | 2 |
| #1962 | 0 |
| #1963 | 3.43 |
| #1964 | 3.5 |
| #1965 | 4.33 |
| #1966 | 0 |
| #1967 | 0 |
| #1968 | 0 |
| #1969 | 4 |
| #1970 | 2.67 |
| #1971 | 3 |
| #1972 | 0 |
| #1973 | 0 |
| #1974 | 3 |
| #1975 | 3 |
| #1976 | 3.98 |
| #1977 | 4.13 |
| #1978 | 3.96 |
| #1979 | 3.77 |
| #1980 | 3.47 |
| #1981 | 3 |
| #1982 | 3.77 |
| #1983 | 3.88 |
| #1984 | 3.88 |
| #1985 | 0 |
| #1986 | 4.06 |
| #1987 | 3.91 |
| #1988 | 4 |
| #1989 | 3.9 |
| #1990 | 3.25 |
| #1991 | 0 |
| #1992 | 3.5 |
| #1993 | 3.8 |
| #1994 | 4 |
| #1995 | 3.82 |
| #1996 | 3.89 |
| #1998 | 3.33 |
| #1999 | 3.73 |
| #2000 | 3.99 |
| #2001 | 4.41 |
| #2002 | 4.32 |
| #2003 | 3.8 |
| #2004 | 3.46 |
| #2005 | 3.37 |
| #2006 | 4 |
| #2007 | 3.85 |
| #2008 | 4 |
| #2009 | 3 |
| #2010 | 3.89 |
| #2011 | 4.5 |
| #2012 | 3 |
| #2013 | 4.07 |
| #2014 | 0 |
| #2015 | 4.6 |
| #2016 | 4 |
| #2017 | 0 |
| #2018 | 4.5 |
| #2019 | 3 |
| #2020 | 3.75 |
| #2021 | 3 |
