| Value | Category | Cases | |
|---|---|---|---|
| 1985 | 1 |
0%
|
|
| 1986 | 8 |
0.1%
|
|
| 1987 | 8 |
0.1%
|
|
| 1988 | 20 |
0.3%
|
|
| 1989 | 44 |
0.6%
|
|
| 1990 | 67 |
1%
|
|
| 1991 | 81 |
1.2%
|
|
| 1992 | 106 |
1.5%
|
|
| 1993 | 117 |
1.7%
|
|
| 1994 | 126 |
1.8%
|
|
| 1995 | 169 |
2.4%
|
|
| 1996 | 162 |
2.3%
|
|
| 1997 | 269 |
3.9%
|
|
| 1998 | 313 |
4.5%
|
|
| 1999 | 377 |
5.5%
|
|
| 2000 | 400 |
5.8%
|
|
| 2001 | 448 |
6.5%
|
|
| 2002 | 507 |
7.3%
|
|
| 2003 | 557 |
8.1%
|
|
| 2004 | 559 |
8.1%
|
|
| 2005 | 603 |
8.7%
|
|
| 2006 | 590 |
8.5%
|
|
| 2007 | 682 |
9.9%
|
|
| 2008 | 613 |
8.9%
|
|
| 2009 | 3 |
0%
|
|
| 9997 | na | 0 |
0%
|
| 9998 | dk | 76 |
1.1%
|
| 9999 | missing | 1 |
0%
|
| Sysmiss | 44401 |