| Value |
Category |
| -999 |
Not Applicable |
| -99 |
Unspecified |
| 1 |
Yes, often or regularly |
| 2 |
Yes, sometimes |
| 3 |
Yes, but seldom |
| 4 |
No, never |
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.