| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 2105 |
85.3%
|
| 2 | 1 or 2 times | 232 |
9.4%
|
| 3 | 3 to 9 times | 71 |
2.9%
|
| 4 | 10 or more times | 61 |
2.5%
|
| Sysmiss | 61 |