| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 2 |
0.2%
|
| 2 | Weekly | 4 |
0.4%
|
| 3 | Monthly | 41 |
4.1%
|
| 4 | 6 monthly | 55 |
5.5%
|
| 5 | Yearly | 51 |
5.1%
|
| 6 | Almost never | 631 |
63.2%
|
| 8 | Not applicable | 198 |
19.8%
|
| 9 | Unspecified | 16 |
1.6%
|