| Value |
Category |
| -9 |
Missing |
| -8 |
Don't know |
| -7 |
Notappl |
| 1 |
January |
| 2 |
February |
| 3 |
March |
| 11 |
November |
| 12 |
December |
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.