| Value | Category | Cases | |
|---|---|---|---|
| 1969 | 1 |
3.8%
|
|
| 1987 | 1 |
3.8%
|
|
| 1988 | 1 |
3.8%
|
|
| 1990 | 1 |
3.8%
|
|
| 1991 | 2 |
7.7%
|
|
| 1992 | 1 |
3.8%
|
|
| 1998 | 4 |
15.4%
|
|
| 1999 | 2 |
7.7%
|
|
| 2000 | 2 |
7.7%
|
|
| 2001 | 3 |
11.5%
|
|
| 2002 | 2 |
7.7%
|
|
| 2003 | 3 |
11.5%
|
|
| 2004 | 2 |
7.7%
|
|
| 2005 | 1 |
3.8%
|
|
| 2147483622 | Not applicable | 0 |
0%
|
| 2147483623 | Refusal | 0 |
0%
|
| 2147483624 | Don't know | 0 |
0%
|
| 2147483625 | No answer | 0 |
0%
|
| 10001 | .D | 20186 | |
| Sysmiss | 28854 |