| Value | Category | Cases | |
|---|---|---|---|
| 1985 | 1 |
0%
|
|
| 1986 | 3 |
0.1%
|
|
| 1988 | 8 |
0.2%
|
|
| 1989 | 6 |
0.1%
|
|
| 1990 | 10 |
0.2%
|
|
| 1991 | 16 |
0.3%
|
|
| 1992 | 20 |
0.4%
|
|
| 1993 | 27 |
0.5%
|
|
| 1994 | 22 |
0.4%
|
|
| 1995 | 31 |
0.6%
|
|
| 1996 | 38 |
0.8%
|
|
| 1997 | 39 |
0.8%
|
|
| 1998 | 59 |
1.2%
|
|
| 1999 | 65 |
1.3%
|
|
| 2000 | 56 |
1.1%
|
|
| 2001 | 68 |
1.4%
|
|
| 2002 | 84 |
1.7%
|
|
| 2003 | 73 |
1.5%
|
|
| 2004 | 91 |
1.8%
|
|
| 2005 | 83 |
1.7%
|
|
| 2006 | 93 |
1.9%
|
|
| 2007 | 112 |
2.2%
|
|
| 2008 | 126 |
2.5%
|
|
| 2009 | 124 |
2.5%
|
|
| 2010 | 137 |
2.7%
|
|
| 2011 | 176 |
3.5%
|
|
| 2012 | 286 |
5.7%
|
|
| 2013 | 379 |
7.6%
|
|
| 2014 | 518 |
10.3%
|
|
| 2015 | 623 |
12.4%
|
|
| 2016 | 631 |
12.6%
|
|
| 2017 | 721 |
14.4%
|
|
| 2018 | 277 |
5.5%
|
|
| 9999 | No response | 5 |
0.1%
|
| Sysmiss | 3525 |