| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1982 | 1 |
1.4%
|
|
| 1986 | 1 |
1.4%
|
|
| 1987 | 2 |
2.7%
|
|
| 1988 | 5 |
6.8%
|
|
| 1989 | 4 |
5.5%
|
|
| 1990 | 5 |
6.8%
|
|
| 1991 | 4 |
5.5%
|
|
| 1992 | 8 |
11%
|
|
| 1993 | 7 |
9.6%
|
|
| 1994 | 5 |
6.8%
|
|
| 1995 | 5 |
6.8%
|
|
| 1996 | 3 |
4.1%
|
|
| 1997 | 6 |
8.2%
|
|
| 1998 | 7 |
9.6%
|
|
| 1999 | 5 |
6.8%
|
|
| 2000 | 1 |
1.4%
|
|
| 2001 | 3 |
4.1%
|
|
| 2002 | 1 |
1.4%
|
|
| Sysmiss | 801 |