| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1492 |
72%
|
| 2 | 1 or 2 times | 409 |
19.7%
|
| 3 | 3 to 9 times | 120 |
5.8%
|
| 4 | 10 or more times | 51 |
2.5%
|
| Sysmiss | 42 |