| Value |
Category |
| -999 |
missing |
| -777 |
not applicable |
| 1 |
NEVER |
| 2 |
ONCE IN A WHILE |
| 3 |
USUALLY |
| 4 |
ALWAYS |
| 5 |
NOT APPLICABLE |
| 9 |
MISSING |
| 11 |
.R |
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.