| Value | Category | Cases | |
|---|---|---|---|
| 1979 | 2 |
0.1%
|
|
| 1981 | 1 |
0.1%
|
|
| 1982 | 1 |
0.1%
|
|
| 1983 | 8 |
0.5%
|
|
| 1984 | 10 |
0.6%
|
|
| 1985 | 11 |
0.7%
|
|
| 1986 | 13 |
0.8%
|
|
| 1987 | 17 |
1%
|
|
| 1988 | 36 |
2.2%
|
|
| 1989 | 29 |
1.7%
|
|
| 1990 | 43 |
2.6%
|
|
| 1991 | 53 |
3.2%
|
|
| 1992 | 63 |
3.8%
|
|
| 1993 | 65 |
3.9%
|
|
| 1994 | 60 |
3.6%
|
|
| 1995 | 91 |
5.4%
|
|
| 1996 | 67 |
4%
|
|
| 1997 | 105 |
6.3%
|
|
| 1998 | 80 |
4.8%
|
|
| 1999 | 106 |
6.3%
|
|
| 2000 | 104 |
6.2%
|
|
| 2001 | 101 |
6%
|
|
| 2002 | 105 |
6.3%
|
|
| 2003 | 102 |
6.1%
|
|
| 2004 | 95 |
5.7%
|
|
| 2005 | 110 |
6.6%
|
|
| 2006 | 88 |
5.3%
|
|
| 2007 | 105 |
6.3%
|
|
| 9997 | Inconsistent | 0 |
0%
|
| 9998 | DK | 0 |
0%
|
| Sysmiss | 8699 |