| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1661 |
80.1%
|
| 2 | 1 or 2 times | 286 |
13.8%
|
| 3 | 3 to 9 times | 72 |
3.5%
|
| 4 | 10 or more times | 54 |
2.6%
|
| Sysmiss | 39 |