| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1- 3 | 1297 |
43.8%
|
| 2 | 4-6 | 714 |
24.1%
|
| 3 | 7 m3 and more | 235 |
7.9%
|
| Sysmiss | 716 |