| Value | Category | Cases | |
|---|---|---|---|
| 1980 | 5 |
0.1%
|
|
| 1981 | 1 |
0%
|
|
| 1982 | 2 |
0%
|
|
| 1984 | 4 |
0.1%
|
|
| 1985 | 3 |
0%
|
|
| 1986 | 9 |
0.1%
|
|
| 1987 | 5 |
0.1%
|
|
| 1988 | 14 |
0.2%
|
|
| 1989 | 12 |
0.2%
|
|
| 1990 | 42 |
0.6%
|
|
| 1991 | 48 |
0.6%
|
|
| 1992 | 37 |
0.5%
|
|
| 1993 | 49 |
0.6%
|
|
| 1994 | 64 |
0.8%
|
|
| 1995 | 93 |
1.2%
|
|
| 1996 | 136 |
1.8%
|
|
| 1997 | 121 |
1.6%
|
|
| 1998 | 142 |
1.9%
|
|
| 1999 | 209 |
2.7%
|
|
| 2000 | 371 |
4.9%
|
|
| 2001 | 245 |
3.2%
|
|
| 2002 | 199 |
2.6%
|
|
| 2003 | 237 |
3.1%
|
|
| 2004 | 211 |
2.8%
|
|
| 2005 | 258 |
3.4%
|
|
| 2006 | 244 |
3.2%
|
|
| 2007 | 240 |
3.2%
|
|
| 2008 | 290 |
3.8%
|
|
| 2009 | 279 |
3.7%
|
|
| 2010 | 373 |
4.9%
|
|
| 2011 | 335 |
4.4%
|
|
| 2012 | 332 |
4.4%
|
|
| 2013 | 346 |
4.5%
|
|
| 2014 | 372 |
4.9%
|
|
| 2015 | 375 |
4.9%
|
|
| 2016 | 356 |
4.7%
|
|
| 2017 | 346 |
4.5%
|
|
| 2018 | 381 |
5%
|
|
| 2019 | 336 |
4.4%
|
|
| 2020 | 292 |
3.8%
|
|
| 2021 | 128 |
1.7%
|
|
| 9998 | DK | 65 |
0.9%
|
| 9999 | NO RESPONSE | 3 |
0%
|
| Sysmiss | 10856 |