| Value | Category | Cases | |
|---|---|---|---|
| 1984 | 2 |
0.1%
|
|
| 1985 | 1 |
0%
|
|
| 1986 | 1 |
0%
|
|
| 1987 | 12 |
0.4%
|
|
| 1988 | 19 |
0.6%
|
|
| 1989 | 12 |
0.4%
|
|
| 1990 | 34 |
1.2%
|
|
| 1991 | 24 |
0.8%
|
|
| 1992 | 36 |
1.2%
|
|
| 1993 | 32 |
1.1%
|
|
| 1994 | 41 |
1.4%
|
|
| 1995 | 34 |
1.2%
|
|
| 1996 | 39 |
1.3%
|
|
| 1997 | 33 |
1.1%
|
|
| 1998 | 36 |
1.2%
|
|
| 1999 | 56 |
1.9%
|
|
| 2000 | 68 |
2.3%
|
|
| 2001 | 53 |
1.8%
|
|
| 2002 | 50 |
1.7%
|
|
| 2003 | 53 |
1.8%
|
|
| 2004 | 46 |
1.6%
|
|
| 2005 | 46 |
1.6%
|
|
| 2006 | 70 |
2.4%
|
|
| 2007 | 89 |
3%
|
|
| 2008 | 91 |
3.1%
|
|
| 2009 | 71 |
2.4%
|
|
| 2010 | 81 |
2.8%
|
|
| 2011 | 79 |
2.7%
|
|
| 2012 | 74 |
2.5%
|
|
| 2013 | 81 |
2.8%
|
|
| 2014 | 75 |
2.6%
|
|
| 2015 | 73 |
2.5%
|
|
| 2016 | 57 |
1.9%
|
|
| 2017 | 65 |
2.2%
|
|
| 2018 | 23 |
0.8%
|
|
| 9998 | DK | 21 |
0.7%
|
| Sysmiss | 1250 |
42.7%
|