| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 4 |
2.1%
|
| 2 | Several times a week | 146 |
77.7%
|
| 3 | At least once a week | 31 |
16.5%
|
| 4 | Once every two weeks | 6 |
3.2%
|
| 5 | Once a month | 0 |
0%
|
| 6 | Have not received in the past month | 1 |
0.5%
|
| Sysmiss | 23552 |