| Value | Category | Cases | |
|---|---|---|---|
| 1990 | 1 |
0%
|
|
| 1992 | 1 |
0%
|
|
| 1993 | 2 |
0.1%
|
|
| 1994 | 3 |
0.1%
|
|
| 1995 | 9 |
0.3%
|
|
| 1996 | 13 |
0.5%
|
|
| 1997 | 41 |
1.5%
|
|
| 1998 | 52 |
1.9%
|
|
| 1999 | 77 |
2.8%
|
|
| 2000 | 104 |
3.7%
|
|
| 2001 | 139 |
5%
|
|
| 2002 | 156 |
5.6%
|
|
| 2003 | 189 |
6.8%
|
|
| 2004 | 187 |
6.7%
|
|
| 2005 | 187 |
6.7%
|
|
| 2006 | 222 |
8%
|
|
| 2007 | 186 |
6.7%
|
|
| 2008 | 168 |
6%
|
|
| 2009 | 161 |
5.8%
|
|
| 2010 | 225 |
8.1%
|
|
| 2011 | 245 |
8.8%
|
|
| 2012 | 230 |
8.3%
|
|
| 2013 | 174 |
6.2%
|
|
| 2014 | 8 |
0.3%
|
|
| 9998 | Don't know | 5 |
0.2%
|
| Sysmiss | 8131 |