| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 2106 |
89.4%
|
| 2 | 1 or 2 times | 167 |
7.1%
|
| 3 | 3 to 9 times | 51 |
2.2%
|
| 4 | 10 or more times | 32 |
1.4%
|
| Sysmiss | 152 |