| Value | Category | Cases | |
|---|---|---|---|
| 1975 | 1 |
0%
|
|
| 1985 | 1 |
0%
|
|
| 1989 | 1 |
0%
|
|
| 1990 | 2 |
0%
|
|
| 1991 | 2 |
0%
|
|
| 1992 | 2 |
0%
|
|
| 1993 | 7 |
0%
|
|
| 1994 | 5 |
0%
|
|
| 1995 | 14 |
0.1%
|
|
| 1996 | 7 |
0%
|
|
| 1997 | 7 |
0%
|
|
| 1998 | 13 |
0.1%
|
|
| 1999 | 8 |
0%
|
|
| 2000 | 40 |
0.2%
|
|
| 2001 | 24 |
0.1%
|
|
| 2002 | 28 |
0.1%
|
|
| 2003 | 38 |
0.2%
|
|
| 2004 | 38 |
0.2%
|
|
| 2005 | 79 |
0.3%
|
|
| 2006 | 57 |
0.2%
|
|
| 2007 | 120 |
0.5%
|
|
| 2008 | 133 |
0.5%
|
|
| 2009 | 175 |
0.7%
|
|
| 2010 | 433 |
1.8%
|
|
| 2011 | 508 |
2.1%
|
|
| 2012 | 1071 |
4.3%
|
|
| 2013 | 2791 |
11.3%
|
|
| 2014 | 9672 |
39.1%
|
|
| 2015 | 8916 |
36.1%
|
|
| 2016 | 344 |
1.4%
|
|
| 9998 | don't know | 183 |
0.7%
|
| Sysmiss | 13998 |