| Value | Category | Cases | |
|---|---|---|---|
| 1982 | 1 |
0%
|
|
| 1987 | 3 |
0%
|
|
| 1988 | 8 |
0.1%
|
|
| 1989 | 9 |
0.1%
|
|
| 1990 | 27 |
0.3%
|
|
| 1991 | 48 |
0.6%
|
|
| 1992 | 66 |
0.8%
|
|
| 1993 | 62 |
0.7%
|
|
| 1994 | 93 |
1.1%
|
|
| 1995 | 93 |
1.1%
|
|
| 1996 | 92 |
1.1%
|
|
| 1997 | 103 |
1.2%
|
|
| 1998 | 117 |
1.4%
|
|
| 1999 | 102 |
1.2%
|
|
| 2000 | 122 |
1.4%
|
|
| 2001 | 132 |
1.6%
|
|
| 2002 | 122 |
1.4%
|
|
| 2003 | 150 |
1.8%
|
|
| 2004 | 134 |
1.6%
|
|
| 2005 | 142 |
1.7%
|
|
| 2006 | 163 |
1.9%
|
|
| 2007 | 136 |
1.6%
|
|
| 2008 | 173 |
2%
|
|
| 2009 | 173 |
2%
|
|
| 2010 | 242 |
2.8%
|
|
| 2011 | 250 |
2.9%
|
|
| 2012 | 247 |
2.9%
|
|
| 2013 | 298 |
3.5%
|
|
| 2014 | 298 |
3.5%
|
|
| 2015 | 389 |
4.6%
|
|
| 2016 | 406 |
4.8%
|
|
| 2017 | 442 |
5.2%
|
|
| 2018 | 395 |
4.6%
|
|
| 9999 | NO RESPONSE | 1 |
0%
|
| Sysmiss | 3272 |
38.4%
|