| Value | Category | Cases | |
|---|---|---|---|
| 0 | Zero | 105 |
62.1%
|
| 1 | Once | 28 |
16.6%
|
| 2 | Twice | 16 |
9.5%
|
| 3 | More than twice or blank | 20 |
11.8%
|
| 9 | Missing | 0 |