| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0-14 litre | 1581 |
10.7%
|
| 2 | 15-29 litre | 4311 |
29.1%
|
| 3 | 30-44 litre | 4533 |
30.6%
|
| 4 | 45-59 litre | 1695 |
11.4%
|
| 5 | 60 and more litre | 2528 |
17.1%
|
| 8 | DK | 157 |
1.1%
|
| Sysmiss | 695 |