| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1634 |
85.3%
|
| 2 | 1 or 2 times | 237 |
12.4%
|
| 3 | 3 to 9 times | 27 |
1.4%
|
| 4 | 10 or more times | 18 |
0.9%
|
| Sysmiss | 141 |