| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 677 |
72.9%
|
| 2 | 1 or 2 times | 165 |
17.8%
|
| 3 | 3 to 9 times | 53 |
5.7%
|
| 4 | 10 or more times | 34 |
3.7%
|
| Sysmiss | 28 |