| Value | Category | Cases | |
|---|---|---|---|
| 1986 | 2 |
0%
|
|
| 1987 | 1 |
0%
|
|
| 1988 | 3 |
0%
|
|
| 1989 | 9 |
0.1%
|
|
| 1990 | 13 |
0.2%
|
|
| 1991 | 5 |
0.1%
|
|
| 1992 | 19 |
0.2%
|
|
| 1993 | 9 |
0.1%
|
|
| 1994 | 22 |
0.3%
|
|
| 1995 | 21 |
0.2%
|
|
| 1996 | 23 |
0.3%
|
|
| 1997 | 38 |
0.4%
|
|
| 1998 | 33 |
0.4%
|
|
| 1999 | 44 |
0.5%
|
|
| 2000 | 46 |
0.5%
|
|
| 2001 | 61 |
0.7%
|
|
| 2002 | 69 |
0.8%
|
|
| 2003 | 80 |
0.9%
|
|
| 2004 | 73 |
0.9%
|
|
| 2005 | 105 |
1.2%
|
|
| 2006 | 122 |
1.4%
|
|
| 2007 | 130 |
1.5%
|
|
| 2008 | 166 |
1.9%
|
|
| 2009 | 179 |
2.1%
|
|
| 2010 | 185 |
2.2%
|
|
| 2011 | 218 |
2.6%
|
|
| 2012 | 265 |
3.1%
|
|
| 2013 | 327 |
3.8%
|
|
| 2014 | 354 |
4.2%
|
|
| 2015 | 447 |
5.2%
|
|
| 2016 | 567 |
6.7%
|
|
| 2017 | 621 |
7.3%
|
|
| 2018 | 249 |
2.9%
|
|
| 9999 | NO RESPONSE | 1 |
0%
|
| Sysmiss | 4014 |
47.1%
|