| Value | Category | Cases | |
|---|---|---|---|
| 1 | Once a year | 61 |
53%
|
| 2 | Twice a year | 17 |
14.8%
|
| 3 | Three or more times a year | 3 |
2.6%
|
| 4 | Perennial crop | 34 |
29.6%
|
| Sysmiss | 275 |