| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 2090 |
73.3%
|
| 2 | 1 or 2 times | 465 |
16.3%
|
| 3 | 3 to 9 times | 156 |
5.5%
|
| 4 | 10 or more times | 141 |
4.9%
|
| Sysmiss | 117 |