| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 3592 |
97%
|
| 2 | 1 or 2 times | 76 |
2.1%
|
| 3 | 3 to 9 times | 21 |
0.6%
|
| 4 | 10 or more times | 14 |
0.4%
|
| Sysmiss | 57 |