| Value | Category | Cases | |
|---|---|---|---|
| 1 | Once | 55 |
65.5%
|
| 2 | Twice | 28 |
33.3%
|
| 3 | Tree crop | 0 |
0%
|
| 9 | 1 |
1.2%
|
|
| Sysmiss | 2 |