| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 2600 |
88.7%
|
| 2 | 1 or 2 times | 231 |
7.9%
|
| 3 | 3 to 9 times | 66 |
2.3%
|
| 4 | 10 or more times | 34 |
1.2%
|
| Sysmiss | 36 |