| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 1 |
2%
|
| 2 | Weekly | 3 |
6.1%
|
| 3 | Monthly | 25 |
51%
|
| 4 | Annually | 6 |
12.2%
|
| 5 | After a certain period of time | 3 |
6.1%
|
| 6 | According to the harvest | 1 |
2%
|
| 98 | Don’t know | 10 |
20.4%
|
| Sysmiss | 5079 |