| Value | Category | Cases | |
|---|---|---|---|
| 1945 | 1 |
1%
|
|
| 1948 | 1 |
1%
|
|
| 1952 | 1 |
1%
|
|
| 1954 | 1 |
1%
|
|
| 1957 | 3 |
3%
|
|
| 1959 | 3 |
3%
|
|
| 1960 | 2 |
2%
|
|
| 1961 | 1 |
1%
|
|
| 1962 | 1 |
1%
|
|
| 1964 | 3 |
3%
|
|
| 1965 | 2 |
2%
|
|
| 1966 | 3 |
3%
|
|
| 1967 | 3 |
3%
|
|
| 1968 | 4 |
4%
|
|
| 1969 | 5 |
5.1%
|
|
| 1970 | 6 |
6.1%
|
|
| 1971 | 7 |
7.1%
|
|
| 1972 | 6 |
6.1%
|
|
| 1973 | 2 |
2%
|
|
| 1974 | 6 |
6.1%
|
|
| 1975 | 3 |
3%
|
|
| 1976 | 2 |
2%
|
|
| 1977 | 2 |
2%
|
|
| 1978 | 8 |
8.1%
|
|
| 1979 | 3 |
3%
|
|
| 1980 | 2 |
2%
|
|
| 1981 | 2 |
2%
|
|
| 1982 | 1 |
1%
|
|
| 1983 | 1 |
1%
|
|
| 1984 | 2 |
2%
|
|
| 1985 | 1 |
1%
|
|
| 1986 | 2 |
2%
|
|
| 1987 | 1 |
1%
|
|
| 1988 | 1 |
1%
|
|
| 1989 | 1 |
1%
|
|
| 1990 | 1 |
1%
|
|
| 1991 | 1 |
1%
|
|
| 1992 | 1 |
1%
|
|
| 1995 | 1 |
1%
|
|
| 1996 | 1 |
1%
|
|
| 1999 | 1 |
1%
|