| Value | Category | Cases | |
|---|---|---|---|
| 1 | Everyday | 86 |
0.6%
|
| 2 | Once a week | 71 |
0.5%
|
| 3 | Once a month | 2836 |
20.2%
|
| 4 | Once a term | 2640 |
18.8%
|
| 5 | Once a year | 592 |
4.2%
|
| 6 | Unspecified | 51 |
0.4%
|
| 95 | Missing | 21 |
0.1%
|
| 98 | Don't know | 2 |
0%
|
| 99 | NA | 7712 |
55%
|