| Value | Category | Cases | |
|---|---|---|---|
| 0 | ! Not applicable ! | 64994 |
21.1%
|
| 1 | Local/compost | 128621 |
41.8%
|
| 2 | Mineral/chemical | 38450 |
12.5%
|
| 3 | Both | 75966 |
24.7%
|
| Sysmiss | 548357 |