| Value | Category | Cases | |
|---|---|---|---|
| 1986 | 1 |
0.1%
|
|
| 1987 | 1 |
0.1%
|
|
| 1988 | 2 |
0.2%
|
|
| 1989 | 3 |
0.3%
|
|
| 1990 | 12 |
1.4%
|
|
| 1991 | 2 |
0.2%
|
|
| 1992 | 7 |
0.8%
|
|
| 1993 | 11 |
1.3%
|
|
| 1994 | 10 |
1.1%
|
|
| 1995 | 9 |
1%
|
|
| 1996 | 14 |
1.6%
|
|
| 1997 | 10 |
1.1%
|
|
| 1998 | 12 |
1.4%
|
|
| 1999 | 11 |
1.3%
|
|
| 2000 | 23 |
2.6%
|
|
| 2001 | 15 |
1.7%
|
|
| 2002 | 13 |
1.5%
|
|
| 2003 | 15 |
1.7%
|
|
| 2004 | 8 |
0.9%
|
|
| 2005 | 16 |
1.8%
|
|
| 2006 | 7 |
0.8%
|
|
| 2007 | 10 |
1.1%
|
|
| 2008 | 16 |
1.8%
|
|
| 2009 | 11 |
1.3%
|
|
| 2010 | 19 |
2.2%
|
|
| 2011 | 9 |
1%
|
|
| 2012 | 15 |
1.7%
|
|
| 2013 | 11 |
1.3%
|
|
| 2014 | 14 |
1.6%
|
|
| 2015 | 15 |
1.7%
|
|
| 2016 | 11 |
1.3%
|
|
| 2017 | 19 |
2.2%
|
|
| 2018 | 14 |
1.6%
|
|
| 2019 | 11 |
1.3%
|
|
| 2020 | 2 |
0.2%
|
|
| 9998 | DK | 8 |
0.9%
|
| Sysmiss | 487 |
55.7%
|