| Value | Category | Cases | |
|---|---|---|---|
| 1 | < 1 | 470 |
20.5%
|
| 2 | 1-2 | 651 |
28.5%
|
| 3 | 3-4 | 291 |
12.7%
|
| 4 | 5+ | 704 |
30.8%
|
| 9 | Not stated | 172 |
7.5%
|
| Sysmiss | 41270 |