| Value | Category | Cases | |
|---|---|---|---|
| -98 | Don't know | 2 |
0.3%
|
| 1 | Once every few days | 0 | |
| 2 | Once a day | 22 |
3.2%
|
| 3 | Twice a day | 151 |
21.7%
|
| 4 | Three times a day | 520 |
74.8%
|
| a | Not applicable | 0 | |
| b | Don't know | 0 | |
| c | Refused to respond | 0 |