| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1988 | 1 |
1.3%
|
|
| 1989 | 2 |
2.7%
|
|
| 1990 | 4 |
5.3%
|
|
| 1991 | 1 |
1.3%
|
|
| 1993 | 1 |
1.3%
|
|
| 1994 | 2 |
2.7%
|
|
| 1995 | 2 |
2.7%
|
|
| 1996 | 3 |
4%
|
|
| 1997 | 3 |
4%
|
|
| 1998 | 4 |
5.3%
|
|
| 1999 | 4 |
5.3%
|
|
| 2000 | 8 |
10.7%
|
|
| 2001 | 1 |
1.3%
|
|
| 2002 | 4 |
5.3%
|
|
| 2003 | 7 |
9.3%
|
|
| 2004 | 10 |
13.3%
|
|
| 2005 | 9 |
12%
|
|
| 2006 | 9 |
12%
|
|
| 9997 | Inconsistent | 0 |
0%
|
| 9998 | Don't know | 0 |
0%
|
| Sysmiss | 799 |