| Value | Category | Cases | |
|---|---|---|---|
| 1985 | 7 |
0.1%
|
|
| 1988 | 4 |
0.1%
|
|
| 1989 | 12 |
0.2%
|
|
| 1990 | 7 |
0.1%
|
|
| 1991 | 20 |
0.3%
|
|
| 1992 | 39 |
0.7%
|
|
| 1993 | 41 |
0.7%
|
|
| 1994 | 59 |
1%
|
|
| 1995 | 72 |
1.2%
|
|
| 1996 | 51 |
0.9%
|
|
| 1997 | 96 |
1.6%
|
|
| 1998 | 143 |
2.4%
|
|
| 1999 | 96 |
1.6%
|
|
| 2000 | 250 |
4.2%
|
|
| 2001 | 194 |
3.3%
|
|
| 2002 | 151 |
2.5%
|
|
| 2003 | 252 |
4.2%
|
|
| 2004 | 202 |
3.4%
|
|
| 2005 | 239 |
4%
|
|
| 2006 | 233 |
3.9%
|
|
| 2007 | 253 |
4.2%
|
|
| 2008 | 261 |
4.4%
|
|
| 2009 | 271 |
4.5%
|
|
| 2010 | 294 |
4.9%
|
|
| 2011 | 329 |
5.5%
|
|
| 2012 | 375 |
6.3%
|
|
| 2013 | 417 |
7%
|
|
| 2014 | 485 |
8.1%
|
|
| 2015 | 492 |
8.2%
|
|
| 2016 | 619 |
10.4%
|
|
| 9997 | inconsistent | 0 |
0%
|
| 9998 | don't know | 0 |
0%
|
| Sysmiss | 34430 |