| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 3724 |
86.9%
|
| 2 | 1 or 2 times | 406 |
9.5%
|
| 3 | 3 to 9 times | 95 |
2.2%
|
| 4 | 10 or more times | 59 |
1.4%
|
| Sysmiss | 90 |