| Value |
Category |
Cases |
|
| -9 |
Don't know (spontaneous) |
0 |
|
| 1 |
Cubic meters |
164 |
|
| 2 |
Gallons |
188 |
|
| 3 |
Cubic feet |
0 |
|
| 4 |
Other |
72 |
|
| Sysmiss |
|
574 |
|
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.
