Value |
Category |
1 |
semaine |
2 |
2 semaines |
3 |
mois |
4 |
bimestre |
5 |
trimestre |
6 |
semestre |
7 |
annee scolaire |
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.