| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1983 | 1 |
3.3%
|
|
| 1985 | 2 |
6.7%
|
|
| 1989 | 1 |
3.3%
|
|
| 1991 | 1 |
3.3%
|
|
| 1992 | 1 |
3.3%
|
|
| 1995 | 1 |
3.3%
|
|
| 1996 | 2 |
6.7%
|
|
| 1997 | 1 |
3.3%
|
|
| 2000 | 3 |
10%
|
|
| 2003 | 4 |
13.3%
|
|
| 2004 | 2 |
6.7%
|
|
| 2005 | 6 |
20%
|
|
| 2007 | 2 |
6.7%
|
|
| 2008 | 1 |
3.3%
|
|
| 2009 | 2 |
6.7%
|
|
| Sysmiss | 1658 |