| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 2472 |
96.3%
|
| 2 | 1 or 2 times | 57 |
2.2%
|
| 3 | 3 to 9 times | 30 |
1.2%
|
| 4 | 10 or more times | 7 |
0.3%
|
| Sysmiss | 33 |