| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1174 |
77.9%
|
| 2 | 1 or 2 times | 245 |
16.2%
|
| 3 | 3 to 9 times | 61 |
4%
|
| 4 | 10 or more times | 28 |
1.9%
|
| Sysmiss | 47 |