| Value |
Category |
| 1 |
Jour |
| 2 |
Semaine |
| 3 |
2 fois par semaine |
| 4 |
Mois |
| 5 |
2 fois par mois |
| 6 |
Trimestre |
| 7 |
Semestre |
| Sysmiss |
|
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.