| Value | Category | Cases | |
|---|---|---|---|
| 1983 | 1 |
0.7%
|
|
| 1987 | 5 |
3.5%
|
|
| 1988 | 2 |
1.4%
|
|
| 1989 | 9 |
6.3%
|
|
| 1990 | 10 |
6.9%
|
|
| 1991 | 6 |
4.2%
|
|
| 1992 | 7 |
4.9%
|
|
| 1993 | 10 |
6.9%
|
|
| 1994 | 12 |
8.3%
|
|
| 1995 | 12 |
8.3%
|
|
| 1996 | 14 |
9.7%
|
|
| 1997 | 6 |
4.2%
|
|
| 1998 | 5 |
3.5%
|
|
| 1999 | 8 |
5.6%
|
|
| 2000 | 5 |
3.5%
|
|
| 2001 | 2 |
1.4%
|
|
| 2002 | 8 |
5.6%
|
|
| 2003 | 1 |
0.7%
|
|
| 2004 | 2 |
1.4%
|
|
| 2005 | 1 |
0.7%
|
|
| 2006 | 5 |
3.5%
|
|
| 2007 | 3 |
2.1%
|
|
| 2008 | 2 |
1.4%
|
|
| 2011 | 2 |
1.4%
|
|
| 2013 | 1 |
0.7%
|
|
| 2016 | 1 |
0.7%
|
|
| 2022 | 1 |
0.7%
|
|
| 2024 | 2 |
1.4%
|
|
| 9998 | Don't know | 1 |
0.7%
|
| Sysmiss | 41868 |