| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1990 | 1 |
1.1%
|
|
| 1992 | 1 |
1.1%
|
|
| 1993 | 1 |
1.1%
|
|
| 1995 | 2 |
2.2%
|
|
| 1997 | 1 |
1.1%
|
|
| 1998 | 6 |
6.6%
|
|
| 1999 | 6 |
6.6%
|
|
| 2000 | 6 |
6.6%
|
|
| 2001 | 3 |
3.3%
|
|
| 2002 | 7 |
7.7%
|
|
| 2003 | 9 |
9.9%
|
|
| 2004 | 9 |
9.9%
|
|
| 2005 | 10 |
11%
|
|
| 2006 | 10 |
11%
|
|
| 2007 | 6 |
6.6%
|
|
| 2008 | 6 |
6.6%
|
|
| 2009 | 7 |
7.7%
|
|
| Sysmiss | 2000 |