| Value | Category | Cases | |
|---|---|---|---|
| 1979 | 1 |
0%
|
|
| 1980 | 2 |
0.1%
|
|
| 1982 | 1 |
0%
|
|
| 1983 | 2 |
0.1%
|
|
| 1984 | 1 |
0%
|
|
| 1985 | 2 |
0.1%
|
|
| 1986 | 1 |
0%
|
|
| 1987 | 3 |
0.1%
|
|
| 1988 | 1 |
0%
|
|
| 1989 | 3 |
0.1%
|
|
| 1990 | 6 |
0.2%
|
|
| 1991 | 1 |
0%
|
|
| 1992 | 8 |
0.3%
|
|
| 1993 | 6 |
0.2%
|
|
| 1994 | 1 |
0%
|
|
| 1995 | 19 |
0.7%
|
|
| 1996 | 8 |
0.3%
|
|
| 1997 | 7 |
0.3%
|
|
| 1998 | 3 |
0.1%
|
|
| 1999 | 9 |
0.3%
|
|
| 2000 | 25 |
0.9%
|
|
| 2001 | 8 |
0.3%
|
|
| 2002 | 19 |
0.7%
|
|
| 2003 | 11 |
0.4%
|
|
| 2004 | 18 |
0.7%
|
|
| 2005 | 109 |
4%
|
|
| 2006 | 94 |
3.4%
|
|
| 2007 | 147 |
5.4%
|
|
| 2008 | 147 |
5.4%
|
|
| 2009 | 173 |
6.3%
|
|
| 2010 | 203 |
7.4%
|
|
| 2011 | 260 |
9.5%
|
|
| 2012 | 327 |
11.9%
|
|
| 2013 | 410 |
14.9%
|
|
| 2014 | 603 |
22%
|
|
| 2015 | 99 |
3.6%
|
|
| 9999 | Don't know | 6 |
0.2%
|
| Sysmiss | 186 |