| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1978 | 1 |
2.3%
|
|
| 1980 | 1 |
2.3%
|
|
| 1986 | 2 |
4.7%
|
|
| 1988 | 1 |
2.3%
|
|
| 1993 | 1 |
2.3%
|
|
| 1994 | 2 |
4.7%
|
|
| 1995 | 2 |
4.7%
|
|
| 1996 | 6 |
14%
|
|
| 1997 | 3 |
7%
|
|
| 1998 | 1 |
2.3%
|
|
| 1999 | 5 |
11.6%
|
|
| 2000 | 4 |
9.3%
|
|
| 2001 | 2 |
4.7%
|
|
| 2002 | 6 |
14%
|
|
| 2004 | 6 |
14%
|
|
| Sysmiss | 9504 |