| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 2417 |
83.5%
|
| 2 | 1 or 2 times | 304 |
10.5%
|
| 3 | 3 to 9 times | 100 |
3.5%
|
| 4 | 10 or more times | 75 |
2.6%
|
| Sysmiss | 138 |