| Value | Category | Cases | |
|---|---|---|---|
| 0 | No use at that time | 0 |
0%
|
| 1 | No difference | 13 |
9%
|
| 2 | More then | 17 |
11.8%
|
| 3 | Less then | 63 |
43.8%
|
| 4 | No fertilizer applied at that time | 49 |
34%
|
| 9 | 2 |
1.4%
|
|
| Sysmiss | 4849 |