| Value | Category | Cases | |
|---|---|---|---|
| 1982 | 1 |
0.7%
|
|
| 1984 | 1 |
0.7%
|
|
| 1986 | 2 |
1.3%
|
|
| 1988 | 2 |
1.3%
|
|
| 1989 | 3 |
2%
|
|
| 1990 | 3 |
2%
|
|
| 1991 | 4 |
2.7%
|
|
| 1992 | 8 |
5.4%
|
|
| 1993 | 13 |
8.7%
|
|
| 1994 | 9 |
6%
|
|
| 1995 | 3 |
2%
|
|
| 1996 | 7 |
4.7%
|
|
| 1997 | 10 |
6.7%
|
|
| 1998 | 9 |
6%
|
|
| 1999 | 7 |
4.7%
|
|
| 2000 | 16 |
10.7%
|
|
| 2001 | 7 |
4.7%
|
|
| 2002 | 10 |
6.7%
|
|
| 2003 | 5 |
3.4%
|
|
| 2004 | 10 |
6.7%
|
|
| 2005 | 6 |
4%
|
|
| 2006 | 7 |
4.7%
|
|
| 2007 | 6 |
4%
|
|
| 9997 | Inconsistent | 0 |
0%
|
| 9998 | DK | 0 |
0%
|
| Sysmiss | 10221 |