| Value | Category | Cases | |
|---|---|---|---|
| 1987 | 2 |
0%
|
|
| 1988 | 1 |
0%
|
|
| 1989 | 4 |
0%
|
|
| 1990 | 8 |
0.1%
|
|
| 1991 | 11 |
0.1%
|
|
| 1992 | 34 |
0.3%
|
|
| 1993 | 40 |
0.3%
|
|
| 1994 | 56 |
0.5%
|
|
| 1995 | 86 |
0.7%
|
|
| 1996 | 67 |
0.6%
|
|
| 1997 | 106 |
0.9%
|
|
| 1998 | 109 |
0.9%
|
|
| 1999 | 113 |
1%
|
|
| 2000 | 130 |
1.1%
|
|
| 2001 | 133 |
1.1%
|
|
| 2002 | 150 |
1.3%
|
|
| 2003 | 137 |
1.2%
|
|
| 2004 | 161 |
1.4%
|
|
| 2005 | 141 |
1.2%
|
|
| 2006 | 176 |
1.5%
|
|
| 2007 | 236 |
2%
|
|
| 2008 | 280 |
2.4%
|
|
| 2009 | 298 |
2.5%
|
|
| 2010 | 323 |
2.8%
|
|
| 2011 | 404 |
3.4%
|
|
| 2012 | 460 |
3.9%
|
|
| 2013 | 585 |
5%
|
|
| 2014 | 742 |
6.3%
|
|
| 2015 | 859 |
7.3%
|
|
| 2016 | 900 |
7.7%
|
|
| 2017 | 1005 |
8.6%
|
|
| 2018 | 1015 |
8.6%
|
|
| 9999 | NO RESPONSE | 2 |
0%
|
| Sysmiss | 2963 |
25.2%
|