| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 870 |
71.5%
|
| 2 | 1 or 2 times | 237 |
19.5%
|
| 3 | 3 to 9 times | 77 |
6.3%
|
| 4 | 10 or more times | 32 |
2.6%
|
| Sysmiss | 62 |