| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 3 |
0.3%
|
| 2 | Weekly | 1 |
0.1%
|
| 3 | Monthly | 16 |
1.6%
|
| 4 | 6 monthly | 31 |
3.1%
|
| 5 | Yearly | 35 |
3.5%
|
| 6 | Almost never | 910 |
91.2%
|
| 8 | Not applicable | 1 |
0.1%
|
| 9 | Unspecified | 1 |
0.1%
|