| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 4552 |
74.7%
|
| 2 | 1 or 2 times | 1021 |
16.8%
|
| 3 | 3 to 9 times | 305 |
5%
|
| 4 | 10 or more times | 212 |
3.5%
|
| Sysmiss | 277 |