| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1533 |
73.2%
|
| 2 | 1 or 2 times | 391 |
18.7%
|
| 3 | 3 to 9 times | 120 |
5.7%
|
| 4 | 10 or more times | 51 |
2.4%
|
| Sysmiss | 16 |