| Valeur | Modalité | Cas | |
|---|---|---|---|
| 1981 | 1 |
0.1%
|
|
| 1985 | 1 |
0.1%
|
|
| 1986 | 1 |
0.1%
|
|
| 1987 | 1 |
0.1%
|
|
| 1988 | 1 |
0.1%
|
|
| 1990 | 1 |
0.1%
|
|
| 1997 | 1 |
0.1%
|
|
| 2002 | 1 |
0.1%
|
|
| 2008 | 2 |
0.1%
|
|
| Sysmiss | 1663 |