| Value | Category | Cases | |
|---|---|---|---|
| 1 | Everyday | 2 |
0%
|
| 2 | Once a week | 4 |
0%
|
| 3 | Once a month | 92 |
0.7%
|
| 4 | Once a term | 258 |
1.8%
|
| 5 | Once a year | 118 |
0.8%
|
| 6 | Unspecified | 20 |
0.1%
|
| 95 | Missing | 7 |
0%
|
| 98 | Don't know | 0 |
0%
|
| 99 | NA | 13510 |
96.4%
|