| Valeur | Modalité | Cas | |
|---|---|---|---|
| 1988 | 1 |
0.1%
|
|
| 1989 | 1 |
0.1%
|
|
| 1990 | 1 |
0.1%
|
|
| 1991 | 3 |
0.2%
|
|
| 1994 | 1 |
0.1%
|
|
| 1997 | 1 |
0.1%
|
|
| 1999 | 2 |
0.1%
|
|
| 2002 | 1 |
0.1%
|
|
| 2007 | 1 |
0.1%
|
|
| Sysmiss | 1659 |