| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never or hardly ever | 193217 |
63.7%
|
| 2 | Once or twice a month | 54148 |
17.8%
|
| 3 | Once or twice a week | 33623 |
11.1%
|
| 4 | Almost every day | 22403 |
7.4%
|
| 7 | N/A | 203040 | |
| 8 | Invalid | 221 | |
| 9 | Miss | 9306 |