| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. never | 1485 |
34.1%
|
| 2 | 2. once or twice a year | 47 |
1.1%
|
| 3 | 3. about once a term | 97 |
2.2%
|
| 4 | 4. about once a month | 170 |
3.9%
|
| 5 | 5. about once a week | 1153 |
26.4%
|
| 6 | 6. nearly every day | 1324 |
30.4%
|
| 77 | 77. d/r | 0 |
0%
|
| 99 | 99. missing | 85 |
1.9%
|
| Sysmiss | 177 |