| Value | Category | Cases | |
|---|---|---|---|
| 1 | Nothing. | 567 |
18.1%
|
| 2 | Less than 25 | 306 |
9.8%
|
| 3 | 25 to 50 eek | 607 |
19.4%
|
| 4 | 50 to 75 eek | 409 |
13.1%
|
| 5 | 75 to 100 eek | 430 |
13.8%
|
| 6 | 100 to 150 eek | 293 |
9.4%
|
| 7 | 150 to 200 eek | 194 |
6.2%
|
| 8 | 200 eek or more | 319 |
10.2%
|
| Sysmiss | 20 |