| Value | Category | Cases | |
|---|---|---|---|
| 1 | Once | 12 |
15%
|
| 2 | Twice | 22 |
27.5%
|
| 3 | Thrice | 24 |
30%
|
| 4 | Four times | 18 |
22.5%
|
| 5 | More than four times | 4 |
5%
|
| Sysmiss | 557 |