| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1557 |
85.2%
|
| 2 | 1 or 2 times | 191 |
10.5%
|
| 3 | 3 to 9 times | 48 |
2.6%
|
| 4 | 10 or more times | 31 |
1.7%
|
| Sysmiss | 45 |