| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1736 |
77.7%
|
| 2 | 1 or 2 times | 338 |
15.1%
|
| 3 | 3 to 9 times | 104 |
4.7%
|
| 4 | 10 or more times | 57 |
2.6%
|
| Sysmiss | 315 |