| Value | Category | Cases | |
|---|---|---|---|
| 1981 | 2 |
0%
|
|
| 1982 | 1 |
0%
|
|
| 1983 | 5 |
0.1%
|
|
| 1984 | 6 |
0.1%
|
|
| 1985 | 10 |
0.1%
|
|
| 1986 | 17 |
0.2%
|
|
| 1987 | 25 |
0.3%
|
|
| 1988 | 42 |
0.5%
|
|
| 1989 | 62 |
0.7%
|
|
| 1990 | 75 |
0.9%
|
|
| 1991 | 74 |
0.9%
|
|
| 1992 | 104 |
1.2%
|
|
| 1993 | 87 |
1%
|
|
| 1994 | 93 |
1.1%
|
|
| 1995 | 115 |
1.3%
|
|
| 1996 | 110 |
1.3%
|
|
| 1997 | 124 |
1.5%
|
|
| 1998 | 131 |
1.5%
|
|
| 1999 | 110 |
1.3%
|
|
| 2000 | 150 |
1.8%
|
|
| 2001 | 127 |
1.5%
|
|
| 2002 | 140 |
1.6%
|
|
| 2003 | 150 |
1.8%
|
|
| 2004 | 162 |
1.9%
|
|
| 2005 | 174 |
2%
|
|
| 2006 | 159 |
1.9%
|
|
| 2007 | 166 |
1.9%
|
|
| 2008 | 201 |
2.4%
|
|
| 2009 | 149 |
1.7%
|
|
| 2010 | 170 |
2%
|
|
| 2011 | 185 |
2.2%
|
|
| 2012 | 191 |
2.2%
|
|
| 2013 | 184 |
2.2%
|
|
| 2014 | 202 |
2.4%
|
|
| 2015 | 224 |
2.6%
|
|
| 2016 | 228 |
2.7%
|
|
| 2017 | 251 |
2.9%
|
|
| 2018 | 99 |
1.2%
|
|
| 9999 | NO RESPONSE | 2 |
0%
|
| Sysmiss | 4014 |
47.1%
|