| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 3072 |
91.5%
|
| 2 | 1 or 2 times | 126 |
3.8%
|
| 3 | 3 to 9 times | 68 |
2%
|
| 4 | 10 or more times | 92 |
2.7%
|
| Sysmiss | 48 |