| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1673 |
91.3%
|
| 2 | 1 or 2 times | 121 |
6.6%
|
| 3 | 3 to 9 times | 28 |
1.5%
|
| 4 | 10 or more times | 11 |
0.6%
|
| Sysmiss | 26 |