| Value | Category | Cases | |
|---|---|---|---|
| 1 | Everyday | 26 |
0.1%
|
| 2 | Once a week | 36 |
0.1%
|
| 3 | Once a month | 958 |
2.7%
|
| 4 | Once a term | 18540 |
52.7%
|
| 5 | Once a year | 2310 |
6.6%
|
| 6 | Unspecified | 2115 |
6%
|
| 95 | Missing | 27 |
0.1%
|
| 98 | Don't know | 36 |
0.1%
|
| 99 | NA | 11141 |
31.7%
|