| Value | Category | Cases | |
|---|---|---|---|
| 1 | Everyday | 4 |
0.1%
|
| 2 | Once a week | 17 |
0.5%
|
| 3 | Once a month | 482 |
15.1%
|
| 4 | Once a term | 2071 |
64.7%
|
| 5 | Once a year | 105 |
3.3%
|
| 6 | Unspecified | 116 |
3.6%
|
| 95 | Missing | 7 |
0.2%
|
| 98 | Don't know | 21 |
0.7%
|
| 99 | Expense not incured | 376 |
11.8%
|