| Value | Category | Cases | |
|---|---|---|---|
| 1 | Several Times a day | 32 |
14.8%
|
| 2 | Once in a day | 9 |
4.2%
|
| 3 | Several times a week | 17 |
7.9%
|
| 4 | Once a week | 17 |
7.9%
|
| 5 | Less than once a month | 55 |
25.5%
|
| 6 | Never | 79 |
36.6%
|
| 95 | Missing | 3 |
1.4%
|
| 96 | Others | 4 |
1.9%
|