| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1931 | 1 |
5.3%
|
|
| 1968 | 1 |
5.3%
|
|
| 1972 | 1 |
5.3%
|
|
| 1988 | 1 |
5.3%
|
|
| 1991 | 1 |
5.3%
|
|
| 1994 | 2 |
10.5%
|
|
| 1995 | 2 |
10.5%
|
|
| 1996 | 3 |
15.8%
|
|
| 1997 | 2 |
10.5%
|
|
| 1998 | 2 |
10.5%
|
|
| 2001 | 3 |
15.8%
|
|
| Sysmiss | 9084 |