| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 1 | Cubic meters | 1176 |
92.3%
|
| 2 | Gallons | 6 |
0.5%
|
| 3 | Cubic feet | 2 |
0.2%
|
| 4 | Other | 1 |
0.1%
|
| 5 | Liters | 89 |
7%
|
| Sysmiss | 451 |