| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 2764 |
78.1%
|
| 2 | 1 or 2 times | 466 |
13.2%
|
| 3 | 3 to 9 times | 167 |
4.7%
|
| 4 | 10 or more times | 144 |
4.1%
|
| Sysmiss | 150 |