| Value | Category | Cases | |
|---|---|---|---|
| 1985 | 3 |
0.1%
|
|
| 1986 | 10 |
0.5%
|
|
| 1987 | 12 |
0.6%
|
|
| 1988 | 18 |
0.9%
|
|
| 1989 | 39 |
1.9%
|
|
| 1990 | 56 |
2.7%
|
|
| 1991 | 59 |
2.9%
|
|
| 1992 | 73 |
3.6%
|
|
| 1993 | 80 |
3.9%
|
|
| 1994 | 69 |
3.4%
|
|
| 1995 | 80 |
3.9%
|
|
| 1996 | 86 |
4.2%
|
|
| 1997 | 99 |
4.8%
|
|
| 1998 | 81 |
4%
|
|
| 1999 | 81 |
4%
|
|
| 2000 | 77 |
3.8%
|
|
| 2001 | 80 |
3.9%
|
|
| 2002 | 80 |
3.9%
|
|
| 2003 | 83 |
4.1%
|
|
| 2004 | 104 |
5.1%
|
|
| 2005 | 87 |
4.3%
|
|
| 2006 | 80 |
3.9%
|
|
| 2007 | 89 |
4.4%
|
|
| 2008 | 90 |
4.4%
|
|
| 2009 | 97 |
4.7%
|
|
| 2010 | 77 |
3.8%
|
|
| 2011 | 83 |
4.1%
|
|
| 2012 | 57 |
2.8%
|
|
| 2013 | 48 |
2.3%
|
|
| 2014 | 42 |
2.1%
|
|
| 2015 | 24 |
1.2%
|
|
| 2016 | 1 |
0%
|
|
| 9997 | Inconsistent | 0 |
0%
|
| 9998 | Don't know | 0 |
0%
|
| Sysmiss | 4071 |