| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 820 |
85.5%
|
| 2 | 1 or 2 times | 104 |
10.8%
|
| 3 | 3 to 9 times | 21 |
2.2%
|
| 4 | 10 or more times | 14 |
1.5%
|
| Sysmiss | 66 |