| Value | Category | Cases | |
|---|---|---|---|
| 1964 | 1 |
1.7%
|
|
| 1980 | 1 |
1.7%
|
|
| 1984 | 2 |
3.4%
|
|
| 1985 | 1 |
1.7%
|
|
| 1986 | 1 |
1.7%
|
|
| 1987 | 1 |
1.7%
|
|
| 1988 | 1 |
1.7%
|
|
| 1990 | 2 |
3.4%
|
|
| 1995 | 1 |
1.7%
|
|
| 1997 | 4 |
6.8%
|
|
| 1998 | 1 |
1.7%
|
|
| 1999 | 3 |
5.1%
|
|
| 2000 | 3 |
5.1%
|
|
| 2001 | 3 |
5.1%
|
|
| 2002 | 3 |
5.1%
|
|
| 2003 | 3 |
5.1%
|
|
| 2004 | 5 |
8.5%
|
|
| 2005 | 6 |
10.2%
|
|
| 2006 | 6 |
10.2%
|
|
| 2007 | 2 |
3.4%
|
|
| 2008 | 8 |
13.6%
|
|
| 2009 | 1 |
1.7%
|
|
| 2147483622 | Not applicable | 0 |
0%
|
| 2147483623 | Refusal | 0 |
0%
|
| 2147483624 | Don't know | 0 |
0%
|
| 2147483625 | No answer | 0 |
0%
|
| 10001 | .D | 34262 | |
| Sysmiss | 22431 |