| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1970 | 2 |
5.6%
|
|
| 1978 | 1 |
2.8%
|
|
| 1988 | 1 |
2.8%
|
|
| 1990 | 2 |
5.6%
|
|
| 1992 | 1 |
2.8%
|
|
| 1994 | 3 |
8.3%
|
|
| 1995 | 1 |
2.8%
|
|
| 1996 | 4 |
11.1%
|
|
| 1997 | 6 |
16.7%
|
|
| 1998 | 4 |
11.1%
|
|
| 1999 | 3 |
8.3%
|
|
| 2000 | 3 |
8.3%
|
|
| 2001 | 4 |
11.1%
|
|
| 9999 | 1 |
2.8%
|
|
| Sysmiss | 1248 |