| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 947 |
80.5%
|
| 2 | 1 or 2 times | 138 |
11.7%
|
| 3 | 3 to 9 times | 47 |
4%
|
| 4 | 10 or more times | 45 |
3.8%
|
| Sysmiss | 244 |