| Value | Category | Cases | |
|---|---|---|---|
| 1963 | 1 |
0%
|
|
| 1964 | 2 |
0.1%
|
|
| 1965 | 4 |
0.2%
|
|
| 1966 | 2 |
0.1%
|
|
| 1967 | 3 |
0.1%
|
|
| 1968 | 6 |
0.3%
|
|
| 1969 | 13 |
0.6%
|
|
| 1970 | 18 |
0.8%
|
|
| 1971 | 13 |
0.6%
|
|
| 1972 | 12 |
0.5%
|
|
| 1973 | 13 |
0.6%
|
|
| 1974 | 25 |
1.1%
|
|
| 1975 | 23 |
1%
|
|
| 1976 | 32 |
1.4%
|
|
| 1977 | 24 |
1%
|
|
| 1978 | 27 |
1.2%
|
|
| 1979 | 51 |
2.2%
|
|
| 1980 | 60 |
2.6%
|
|
| 1981 | 36 |
1.5%
|
|
| 1982 | 59 |
2.5%
|
|
| 1983 | 51 |
2.2%
|
|
| 1984 | 47 |
2%
|
|
| 1985 | 51 |
2.2%
|
|
| 1986 | 59 |
2.5%
|
|
| 1987 | 80 |
3.4%
|
|
| 1988 | 46 |
2%
|
|
| 1989 | 95 |
4.1%
|
|
| 1990 | 102 |
4.4%
|
|
| 1991 | 80 |
3.4%
|
|
| 1992 | 96 |
4.1%
|
|
| 1993 | 92 |
4%
|
|
| 1994 | 121 |
5.2%
|
|
| 1995 | 137 |
5.9%
|
|
| 1996 | 173 |
7.4%
|
|
| 1997 | 179 |
7.7%
|
|
| 1998 | 205 |
8.8%
|
|
| 1999 | 193 |
8.3%
|
|
| 2000 | 85 |
3.7%
|
|
| 9993 | inconsistent | 0 |
0%
|
| 9998 | don't know | 8 |
0.3%
|
| 9999 | not applicable | 0 |
0%
|
| 9999995 | missing:impute | 0 |
0%
|
| Sysmiss | 932 |