| Valeur | Modalité | Cas | |
|---|---|---|---|
| -1 | Non réponse | 2 |
0.2%
|
| 1965 | 1 |
0.1%
|
|
| 1978 | 1 |
0.1%
|
|
| 1980 | 2 |
0.2%
|
|
| 1981 | 1 |
0.1%
|
|
| 1982 | 2 |
0.2%
|
|
| 1983 | 1 |
0.1%
|
|
| 1984 | 2 |
0.2%
|
|
| 1986 | 1 |
0.1%
|
|
| 1987 | 1 |
0.1%
|
|
| 1990 | 2 |
0.2%
|
|
| 1991 | 1 |
0.1%
|
|
| 1998 | 1 |
0.1%
|
|
| 2000 | 1 |
0.1%
|
|
| Sysmiss | 1265 |