| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 7721 |
83.8%
|
| 2 | 1 or 2 times | 936 |
10.2%
|
| 3 | 3 to 9 times | 354 |
3.8%
|
| 4 | 10 or more times | 201 |
2.2%
|
| Sysmiss | 963 |