| Value | Category | Cases | |
|---|---|---|---|
| 1980 | 2 |
0%
|
|
| 1982 | 4 |
0%
|
|
| 1983 | 7 |
0%
|
|
| 1984 | 12 |
0%
|
|
| 1985 | 20 |
0.1%
|
|
| 1986 | 30 |
0.1%
|
|
| 1987 | 42 |
0.2%
|
|
| 1988 | 85 |
0.3%
|
|
| 1989 | 72 |
0.3%
|
|
| 1990 | 175 |
0.7%
|
|
| 1991 | 119 |
0.5%
|
|
| 1992 | 179 |
0.7%
|
|
| 1993 | 143 |
0.6%
|
|
| 1994 | 176 |
0.7%
|
|
| 1995 | 298 |
1.2%
|
|
| 1996 | 242 |
1%
|
|
| 1997 | 313 |
1.3%
|
|
| 1998 | 449 |
1.8%
|
|
| 1999 | 564 |
2.3%
|
|
| 2000 | 837 |
3.4%
|
|
| 2001 | 455 |
1.8%
|
|
| 2002 | 567 |
2.3%
|
|
| 2003 | 578 |
2.3%
|
|
| 2004 | 620 |
2.5%
|
|
| 2005 | 739 |
3%
|
|
| 2006 | 641 |
2.6%
|
|
| 2007 | 772 |
3.1%
|
|
| 2008 | 895 |
3.6%
|
|
| 2009 | 905 |
3.7%
|
|
| 2010 | 1217 |
4.9%
|
|
| 2011 | 979 |
4%
|
|
| 2012 | 1061 |
4.3%
|
|
| 2013 | 930 |
3.8%
|
|
| 2014 | 871 |
3.5%
|
|
| 2015 | 912 |
3.7%
|
|
| 2016 | 866 |
3.5%
|
|
| 2017 | 792 |
3.2%
|
|
| 2018 | 845 |
3.4%
|
|
| 2019 | 400 |
1.6%
|
|
| 2020 | 7 |
0%
|
|
| 9997 | Inconsistent | 377 |
1.5%
|
| 9998 | DK | 5391 |
21.9%
|
| 9999 | NO RESPONSE | 43 |
0.2%
|
| Sysmiss | 12522 |