Value | Category | Cases | |
---|---|---|---|
1970 | 1 |
1.3%
|
|
1971 | 1 |
1.3%
|
|
1972 | 2 |
2.5%
|
|
1973 | 4 |
5.1%
|
|
1974 | 1 |
1.3%
|
|
1975 | 2 |
2.5%
|
|
1976 | 3 |
3.8%
|
|
1977 | 3 |
3.8%
|
|
1978 | 4 |
5.1%
|
|
1979 | 9 |
11.4%
|
|
1980 | 4 |
5.1%
|
|
1981 | 8 |
10.1%
|
|
1982 | 11 |
13.9%
|
|
1983 | 9 |
11.4%
|
|
1984 | 4 |
5.1%
|
|
1985 | 4 |
5.1%
|
|
1986 | 2 |
2.5%
|
|
1987 | 3 |
3.8%
|
|
1988 | 3 |
3.8%
|
|
1990 | 1 |
1.3%
|
|
Sysmiss | 726 |