| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 2 |
5.6%
|
| 2 | Weekly | 0 |
0%
|
| 3 | Monthly | 0 |
0%
|
| 4 | Annually | 1 |
2.8%
|
| 5 | After a certain period of time | 2 |
5.6%
|
| 6 | According to the harvest | 0 |
0%
|
| 98 | Don’t know | 31 |
86.1%
|
| Sysmiss | 5092 |