| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all | 75 |
9%
|
| 2 | Up to 10 | 217 |
26%
|
| 3 | Up to 20 | 290 |
34.7%
|
| 4 | Up to 100 or higher | 253 |
30.3%
|
| Sysmiss | 165 |