| Value |
Category |
| 1 |
Never or almost never |
| 2 |
A few times a year |
| 3 |
About once a month |
| 4 |
Several times a month |
| 5 |
Several times a week |
| 7 |
N/A |
| 8 |
Invalid |
| 9 |
Miss |
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.