Value |
Category |
0 |
not applicable |
1 |
3 months |
2 |
4-6 months |
3 |
7-9 months |
4 |
10-12 months |
5 |
13 months or more |
9 |
no answer |
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.