| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1015 |
80%
|
| 2 | 1 or 2 times | 136 |
10.7%
|
| 3 | 3 to 9 times | 56 |
4.4%
|
| 4 | 10 or more times | 62 |
4.9%
|
| Sysmiss | 64 |