| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 2417 |
71%
|
| 2 | 1 or 2 times | 522 |
15.3%
|
| 3 | 3 to 9 times | 231 |
6.8%
|
| 4 | 10 or more times | 236 |
6.9%
|
| Sysmiss | 285 |