| Value | Category | Cases | |
|---|---|---|---|
| 1 | Once per week | 111 |
16.5%
|
| 2 | Several times per week | 109 |
16.2%
|
| 3 | Once per month | 96 |
14.2%
|
| 4 | Several times per month | 136 |
20.2%
|
| 5 | Once per year | 69 |
10.2%
|
| 95 | Other - specify | 153 |
22.7%
|
| Sysmiss | 18445 |