| Value | Category | Cases | |
|---|---|---|---|
| 1980 | 9 |
0.1%
|
|
| 1981 | 7 |
0.1%
|
|
| 1982 | 11 |
0.1%
|
|
| 1983 | 8 |
0.1%
|
|
| 1984 | 15 |
0.2%
|
|
| 1985 | 26 |
0.3%
|
|
| 1986 | 33 |
0.3%
|
|
| 1987 | 44 |
0.4%
|
|
| 1988 | 34 |
0.3%
|
|
| 1989 | 56 |
0.6%
|
|
| 1990 | 102 |
1%
|
|
| 1991 | 52 |
0.5%
|
|
| 1992 | 77 |
0.8%
|
|
| 1993 | 62 |
0.6%
|
|
| 1994 | 68 |
0.7%
|
|
| 1995 | 113 |
1.2%
|
|
| 1996 | 103 |
1.1%
|
|
| 1997 | 125 |
1.3%
|
|
| 1998 | 184 |
1.9%
|
|
| 1999 | 170 |
1.7%
|
|
| 2000 | 327 |
3.3%
|
|
| 2001 | 161 |
1.6%
|
|
| 2002 | 165 |
1.7%
|
|
| 2003 | 196 |
2%
|
|
| 2004 | 182 |
1.9%
|
|
| 2005 | 190 |
1.9%
|
|
| 2006 | 228 |
2.3%
|
|
| 2007 | 192 |
2%
|
|
| 2008 | 231 |
2.4%
|
|
| 2009 | 231 |
2.4%
|
|
| 2010 | 310 |
3.2%
|
|
| 2011 | 259 |
2.6%
|
|
| 2012 | 296 |
3%
|
|
| 2013 | 288 |
2.9%
|
|
| 2014 | 279 |
2.9%
|
|
| 2015 | 358 |
3.7%
|
|
| 2016 | 302 |
3.1%
|
|
| 2017 | 271 |
2.8%
|
|
| 2018 | 179 |
1.8%
|
|
| 2019 | 26 |
0.3%
|
|
| 9997 | INCOHERENT | 83 |
0.8%
|
| 9998 | NSP | 1234 |
12.6%
|
| 9999 | NON REPONSE | 16 |
0.2%
|
| Sysmiss | 2475 |
25.3%
|