| Valeur | Modalité | Cas | |
|---|---|---|---|
| 1976 | 1 |
0.1%
|
|
| 1978 | 1 |
0.1%
|
|
| 1983 | 1 |
0.1%
|
|
| 1984 | 1 |
0.1%
|
|
| 1985 | 1 |
0.1%
|
|
| 1986 | 1 |
0.1%
|
|
| 1989 | 1 |
0.1%
|
|
| 1992 | 1 |
0.1%
|
|
| 1995 | 1 |
0.1%
|
|
| 1998 | 1 |
0.1%
|
|
| Sysmiss | 1663 |