Value | Category | Cases | |
---|---|---|---|
1961 | 4 |
1.9%
|
|
1962 | 6 |
2.8%
|
|
1963 | 4 |
1.9%
|
|
1964 | 6 |
2.8%
|
|
1965 | 2 |
0.9%
|
|
1966 | 3 |
1.4%
|
|
1967 | 6 |
2.8%
|
|
1968 | 5 |
2.4%
|
|
1969 | 3 |
1.4%
|
|
1970 | 8 |
3.8%
|
|
1971 | 1 |
0.5%
|
|
1972 | 10 |
4.7%
|
|
1973 | 6 |
2.8%
|
|
1974 | 2 |
0.9%
|
|
1975 | 3 |
1.4%
|
|
1976 | 3 |
1.4%
|
|
1977 | 4 |
1.9%
|
|
1978 | 3 |
1.4%
|
|
1979 | 6 |
2.8%
|
|
1980 | 7 |
3.3%
|
|
1981 | 6 |
2.8%
|
|
1982 | 7 |
3.3%
|
|
1983 | 6 |
2.8%
|
|
1984 | 5 |
2.4%
|
|
1985 | 8 |
3.8%
|
|
1986 | 8 |
3.8%
|
|
1987 | 9 |
4.2%
|
|
1988 | 5 |
2.4%
|
|
1989 | 10 |
4.7%
|
|
1990 | 4 |
1.9%
|
|
1991 | 6 |
2.8%
|
|
1992 | 14 |
6.6%
|
|
1993 | 16 |
7.5%
|
|
1994 | 10 |
4.7%
|
|
1995 | 6 |
2.8%
|