| Value | Category | Cases | |
|---|---|---|---|
| 1973 | 1 |
0.6%
|
|
| 1975 | 1 |
0.6%
|
|
| 1982 | 1 |
0.6%
|
|
| 1984 | 3 |
1.7%
|
|
| 1985 | 2 |
1.1%
|
|
| 1986 | 1 |
0.6%
|
|
| 1990 | 1 |
0.6%
|
|
| 1991 | 1 |
0.6%
|
|
| 1993 | 3 |
1.7%
|
|
| 1994 | 1 |
0.6%
|
|
| 1996 | 2 |
1.1%
|
|
| 1997 | 2 |
1.1%
|
|
| 1998 | 9 |
5.2%
|
|
| 1999 | 5 |
2.9%
|
|
| 2001 | 4 |
2.3%
|
|
| 2002 | 11 |
6.3%
|
|
| 2003 | 16 |
9.2%
|
|
| 2004 | 28 |
16.1%
|
|
| 2005 | 32 |
18.4%
|
|
| 2006 | 26 |
14.9%
|
|
| 2007 | 14 |
8%
|
|
| 9995 | missing | 0 |
0%
|
| 9997 | refused | 0 |
0%
|
| 9998 | dont know | 10 |
5.7%
|
| 9999 | not applicable | 0 |
0%
|
| Sysmiss | 5717 |
