| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1213 |
70.1%
|
| 2 | 1 or 2 times | 343 |
19.8%
|
| 3 | 3 to 9 times | 117 |
6.8%
|
| 4 | 10 or more times | 58 |
3.4%
|
| Sysmiss | 72 |