| Value | Category | Cases | |
|---|---|---|---|
| 1990 | 1 |
0%
|
|
| 1991 | 1 |
0%
|
|
| 1993 | 3 |
0%
|
|
| 1994 | 4 |
0%
|
|
| 1995 | 8 |
0.1%
|
|
| 1996 | 3 |
0%
|
|
| 1997 | 4 |
0%
|
|
| 1998 | 8 |
0.1%
|
|
| 1999 | 4 |
0%
|
|
| 2000 | 19 |
0.2%
|
|
| 2001 | 13 |
0.1%
|
|
| 2002 | 11 |
0.1%
|
|
| 2003 | 15 |
0.1%
|
|
| 2004 | 21 |
0.2%
|
|
| 2005 | 39 |
0.4%
|
|
| 2006 | 22 |
0.2%
|
|
| 2007 | 54 |
0.5%
|
|
| 2008 | 62 |
0.6%
|
|
| 2009 | 82 |
0.8%
|
|
| 2010 | 188 |
1.7%
|
|
| 2011 | 204 |
1.9%
|
|
| 2012 | 472 |
4.4%
|
|
| 2013 | 1182 |
10.9%
|
|
| 2014 | 4115 |
37.9%
|
|
| 2015 | 4074 |
37.6%
|
|
| 2016 | 158 |
1.5%
|
|
| 9998 | don't know | 80 |
0.7%
|
| Sysmiss | 2068 |