| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. No | 156 |
90.7%
|
| 1 | 1. Once a hour | 5 |
2.9%
|
| 2 | 2. Once a day | 5 |
2.9%
|
| 3 | 3. Once a month | 5 |
2.9%
|
| 4 | 4. Less than once a month | 1 |
0.6%
|
| Sysmiss | 14705 |