| Value |
Category |
| 1 |
Never |
| 2 |
Once or twice in the past month |
| 3 |
About once a week |
| 4 |
2 or 3 times a week |
| 5 |
almost every day |
| 6 |
Every day |
| 99 |
N/A |
| Sysmiss |
|
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.