| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1530 |
62.8%
|
| 2 | 1 or 2 times | 427 |
17.5%
|
| 3 | 3 to 9 times | 281 |
11.5%
|
| 4 | 10 or more times | 200 |
8.2%
|
| Sysmiss | 110 |