| Value | Category | Cases | |
|---|---|---|---|
| 1980 | 1 |
0%
|
|
| 1982 | 1 |
0%
|
|
| 1984 | 3 |
0.1%
|
|
| 1985 | 5 |
0.2%
|
|
| 1986 | 8 |
0.3%
|
|
| 1987 | 3 |
0.1%
|
|
| 1988 | 7 |
0.3%
|
|
| 1989 | 3 |
0.1%
|
|
| 1990 | 13 |
0.5%
|
|
| 1991 | 7 |
0.3%
|
|
| 1992 | 22 |
0.9%
|
|
| 1993 | 17 |
0.7%
|
|
| 1994 | 23 |
0.9%
|
|
| 1995 | 25 |
1%
|
|
| 1996 | 14 |
0.6%
|
|
| 1997 | 32 |
1.3%
|
|
| 1998 | 35 |
1.4%
|
|
| 1999 | 43 |
1.8%
|
|
| 2000 | 71 |
2.9%
|
|
| 2001 | 42 |
1.7%
|
|
| 2002 | 49 |
2%
|
|
| 2003 | 52 |
2.1%
|
|
| 2004 | 56 |
2.3%
|
|
| 2005 | 51 |
2.1%
|
|
| 2006 | 51 |
2.1%
|
|
| 2007 | 57 |
2.3%
|
|
| 2008 | 50 |
2%
|
|
| 2009 | 51 |
2.1%
|
|
| 2010 | 61 |
2.5%
|
|
| 2011 | 57 |
2.3%
|
|
| 2012 | 53 |
2.2%
|
|
| 2013 | 59 |
2.4%
|
|
| 2014 | 69 |
2.8%
|
|
| 2015 | 60 |
2.4%
|
|
| 2016 | 33 |
1.3%
|
|
| 2017 | 23 |
0.9%
|
|
| 9998 | NSP | 11 |
0.4%
|
| Sysmiss | 1238 |
50.4%
|