| Value | Category | Cases | |
|---|---|---|---|
| 1 | Once a year | 167 |
63.5%
|
| 2 | Twice a year | 53 |
20.2%
|
| 3 | Three or more times a year | 7 |
2.7%
|
| 4 | Perennial crop | 36 |
13.7%
|
| Sysmiss | 127 |