| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 2 |
22.2%
|
| 2 | Once a year | 4 |
44.4%
|
| 3 | Twice a year | 0 |
0%
|
| 4 | Once a term | 1 |
11.1%
|
| 5 | Twice a term | 2 |
22.2%
|
| 6 | Three times a term | 0 |
0%
|
| 7 | Other | 0 |
0%
|