| Value | Category | Cases | |
|---|---|---|---|
| 1982 | 1 |
0%
|
|
| 1984 | 3 |
0%
|
|
| 1985 | 14 |
0.1%
|
|
| 1986 | 11 |
0.1%
|
|
| 1987 | 35 |
0.3%
|
|
| 1988 | 45 |
0.4%
|
|
| 1989 | 66 |
0.6%
|
|
| 1990 | 87 |
0.8%
|
|
| 1991 | 79 |
0.7%
|
|
| 1992 | 102 |
0.9%
|
|
| 1993 | 126 |
1.1%
|
|
| 1994 | 129 |
1.2%
|
|
| 1995 | 148 |
1.3%
|
|
| 1996 | 145 |
1.3%
|
|
| 1997 | 157 |
1.4%
|
|
| 1998 | 177 |
1.6%
|
|
| 1999 | 170 |
1.5%
|
|
| 2000 | 173 |
1.6%
|
|
| 2001 | 175 |
1.6%
|
|
| 2002 | 198 |
1.8%
|
|
| 2003 | 227 |
2.1%
|
|
| 2004 | 194 |
1.8%
|
|
| 2005 | 224 |
2%
|
|
| 2006 | 281 |
2.6%
|
|
| 2007 | 276 |
2.5%
|
|
| 2008 | 255 |
2.3%
|
|
| 2009 | 268 |
2.4%
|
|
| 2010 | 301 |
2.7%
|
|
| 2011 | 271 |
2.5%
|
|
| 2012 | 316 |
2.9%
|
|
| 2013 | 283 |
2.6%
|
|
| 2014 | 240 |
2.2%
|
|
| 2015 | 222 |
2%
|
|
| 2016 | 205 |
1.9%
|
|
| 2017 | 192 |
1.7%
|
|
| 2018 | 11 |
0.1%
|
|
| 9997 | INCONSISTENT | 5 |
0%
|
| 9998 | DK | 162 |
1.5%
|
| 9999 | NO RESPONSE | 2 |
0%
|
| Sysmiss | 5041 |
45.8%
|