| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1202 |
80.5%
|
| 2 | 1 or 2 times | 217 |
14.5%
|
| 3 | 3 to 9 times | 47 |
3.1%
|
| 4 | 10 or more times | 28 |
1.9%
|
| Sysmiss | 12 |