trouble sleeping: cannot get to sleep within 30 mins
Datafile
| Value label | Value | Absolute frequency | Relative frequency |
|---|---|---|---|
| missing | -9 | 380 | 14.8% |
| don't know | -1 | 70 | 2.73% |
| not during the past month | 1 | 870 | 33.88% |
| less than once a week | 2 | 562 | 21.88% |
| once or twice a week | 3 | 339 | 13.2% |
| three or more times a week | 4 | 347 | 13.51% |
| Total | 2568 | 100.0% |
