Value |
Category |
1 |
Day |
2 |
Week |
3 |
Two-week |
4 |
Month |
5 |
Semester |
6 |
Year |
7 |
Inap |
8 |
Do not know |
9 |
No response |
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.