| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 2362 |
91.2%
|
| 2 | 1 or 2 times | 168 |
6.5%
|
| 3 | 3 to 9 times | 43 |
1.7%
|
| 4 | 10 or more times | 18 |
0.7%
|
| Sysmiss | 84 |