trouble sleeping: wake up in the middle of the night or early in the morning
Datafile
| Value label | Value | Absolute frequency | Relative frequency |
|---|---|---|---|
| missing | -9 | 380 | 14.8% |
| don't know | -1 | 65 | 2.53% |
| not during the past month | 1 | 397 | 15.46% |
| less than once a week | 2 | 420 | 16.36% |
| once or twice a week | 3 | 557 | 21.69% |
| three or more times a week | 4 | 749 | 29.17% |
| Total | 2568 | 100.0% |
