| Value | Category | Cases | |
|---|---|---|---|
| 1979 | 4 |
1.8%
|
|
| 1980 | 10 |
4.6%
|
|
| 1981 | 4 |
1.8%
|
|
| 1982 | 2 |
0.9%
|
|
| 1983 | 1 |
0.5%
|
|
| 1984 | 5 |
2.3%
|
|
| 1985 | 3 |
1.4%
|
|
| 1986 | 3 |
1.4%
|
|
| 1987 | 5 |
2.3%
|
|
| 1988 | 3 |
1.4%
|
|
| 1989 | 4 |
1.8%
|
|
| 1990 | 5 |
2.3%
|
|
| 1991 | 1 |
0.5%
|
|
| 1992 | 2 |
0.9%
|
|
| 1993 | 2 |
0.9%
|
|
| 1994 | 9 |
4.1%
|
|
| 1995 | 1 |
0.5%
|
|
| 1996 | 1 |
0.5%
|
|
| 1997 | 3 |
1.4%
|
|
| 1998 | 2 |
0.9%
|
|
| 1999 | 4 |
1.8%
|
|
| 2000 | 9 |
4.1%
|
|
| 2001 | 3 |
1.4%
|
|
| 2002 | 4 |
1.8%
|
|
| 2003 | 16 |
7.4%
|
|
| 2004 | 3 |
1.4%
|
|
| 2005 | 13 |
6%
|
|
| 2006 | 16 |
7.4%
|
|
| 2007 | 9 |
4.1%
|
|
| 2008 | 14 |
6.5%
|
|
| 2009 | 31 |
14.3%
|
|
| 2010 | 25 |
11.5%
|
|
| Sysmiss | 3788 |