| Value | Category | Cases | |
|---|---|---|---|
| . | 129 |
3.7%
|
|
| 1 | Once | 1688 |
48.2%
|
| 2 | Twice | 891 |
25.5%
|
| 3 | Three | 296 |
8.5%
|
| 4 | Four | 120 |
3.4%
|
| 5 | Five or more | 375 |
10.7%
|
| ? | 329439 |