value | category | cases | |
---|---|---|---|
1969 | 1 |
0.1%
|
|
1973 | 2 |
0.3%
|
|
1974 | 2 |
0.3%
|
|
1975 | 5 |
0.7%
|
|
1976 | 1 |
0.1%
|
|
1977 | 7 |
1%
|
|
1978 | 4 |
0.6%
|
|
1979 | 9 |
1.3%
|
|
1980 | 10 |
1.5%
|
|
1981 | 7 |
1%
|
|
1982 | 11 |
1.6%
|
|
1983 | 13 |
1.9%
|
|
1984 | 23 |
3.4%
|
|
1985 | 24 |
3.6%
|
|
1986 | 21 |
3.1%
|
|
1987 | 23 |
3.4%
|
|
1988 | 37 |
5.5%
|
|
1989 | 32 |
4.7%
|
|
1990 | 38 |
5.6%
|
|
1991 | 39 |
5.8%
|
|
1992 | 33 |
4.9%
|
|
1993 | 52 |
7.7%
|
|
1994 | 58 |
8.6%
|
|
1995 | 65 |
9.6%
|
|
1996 | 85 |
12.6%
|
|
1997 | 74 |
10.9%
|
|
9997 | Inconsistent | 0 |
0%
|
9998 | Don't know | 0 |
0%
|
Sysmiss | 11801 |