| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. none | 658 |
15.1%
|
| 1 | 1. 1-4 | 2855 |
65.5%
|
| 2 | 2. 5-10 | 692 |
15.9%
|
| 3 | 3. 11-16 | 83 |
1.9%
|
| 4 | 4. more than 16 | 69 |
1.6%
|
| 77 | 77. d/r | 0 |
0%
|
| 99 | 99. missing | 4 |
0.1%
|
| Sysmiss | 177 |