| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 840 |
65.5%
|
| 2 | 1 or 2 times | 276 |
21.5%
|
| 3 | 3 to 9 times | 87 |
6.8%
|
| 4 | 10 or more times | 79 |
6.2%
|
| Sysmiss | 51 |