| Value | Category | Cases | |
|---|---|---|---|
| 1986 | 1 |
0%
|
|
| 1988 | 1 |
0%
|
|
| 1989 | 5 |
0.1%
|
|
| 1990 | 10 |
0.3%
|
|
| 1991 | 9 |
0.3%
|
|
| 1992 | 14 |
0.4%
|
|
| 1993 | 27 |
0.8%
|
|
| 1994 | 28 |
0.8%
|
|
| 1995 | 34 |
1%
|
|
| 1996 | 29 |
0.8%
|
|
| 1997 | 66 |
1.9%
|
|
| 1998 | 65 |
1.9%
|
|
| 1999 | 97 |
2.8%
|
|
| 2000 | 112 |
3.2%
|
|
| 2001 | 129 |
3.7%
|
|
| 2002 | 180 |
5.1%
|
|
| 2003 | 210 |
6%
|
|
| 2004 | 253 |
7.2%
|
|
| 2005 | 291 |
8.3%
|
|
| 2006 | 352 |
10.1%
|
|
| 2007 | 446 |
12.7%
|
|
| 2008 | 732 |
20.9%
|
|
| 2009 | 408 |
11.7%
|
|
| 9997 | na | 0 |
0%
|
| 9998 | dk | 0 |
0%
|
| 9999 | missing | 0 |
0%
|
| Sysmiss | 47809 |