| Value | Category | Cases | |
|---|---|---|---|
| -9 | Missing | 0 |
0%
|
| -8 | Uncodeabel | 0 |
0%
|
| -7 | N/a | 0 |
0%
|
| 0 | No fertiliser applied at that time | 308 |
86%
|
| 1 | Amount decreased since then | 12 |
3.4%
|
| 2 | Amount unchanged | 7 |
2%
|
| 3 | Amount increased since then | 31 |
8.7%
|
| Sysmiss | 4635 |