| Value | Category | Cases | |
|---|---|---|---|
| 1980 | 11 |
0%
|
|
| 1981 | 2 |
0%
|
|
| 1982 | 7 |
0%
|
|
| 1983 | 15 |
0%
|
|
| 1984 | 19 |
0.1%
|
|
| 1985 | 30 |
0.1%
|
|
| 1986 | 48 |
0.2%
|
|
| 1987 | 58 |
0.2%
|
|
| 1988 | 129 |
0.4%
|
|
| 1989 | 105 |
0.3%
|
|
| 1990 | 182 |
0.6%
|
|
| 1991 | 173 |
0.6%
|
|
| 1992 | 233 |
0.8%
|
|
| 1993 | 267 |
0.9%
|
|
| 1994 | 277 |
0.9%
|
|
| 1995 | 291 |
0.9%
|
|
| 1996 | 376 |
1.2%
|
|
| 1997 | 362 |
1.2%
|
|
| 1998 | 537 |
1.7%
|
|
| 1999 | 435 |
1.4%
|
|
| 2000 | 739 |
2.4%
|
|
| 2001 | 497 |
1.6%
|
|
| 2002 | 545 |
1.8%
|
|
| 2003 | 559 |
1.8%
|
|
| 2004 | 623 |
2%
|
|
| 2005 | 608 |
2%
|
|
| 2006 | 756 |
2.4%
|
|
| 2007 | 566 |
1.8%
|
|
| 2008 | 820 |
2.6%
|
|
| 2009 | 750 |
2.4%
|
|
| 2010 | 934 |
3%
|
|
| 2011 | 982 |
3.2%
|
|
| 2012 | 916 |
3%
|
|
| 2013 | 873 |
2.8%
|
|
| 2014 | 984 |
3.2%
|
|
| 2015 | 965 |
3.1%
|
|
| 2016 | 842 |
2.7%
|
|
| 2017 | 712 |
2.3%
|
|
| 2018 | 787 |
2.5%
|
|
| 2019 | 47 |
0.2%
|
|
| 9997 | Inconsistent | 49 |
0.2%
|
| 9999 | NO RESPONSE | 2 |
0%
|
| Sysmiss | 12930 |
41.7%
|