| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 4 |
1.2%
|
| 2 | Weekly | 3 |
0.9%
|
| 3 | Monthly | 264 |
81.2%
|
| 4 | Annually | 19 |
5.8%
|
| 5 | After a certain period of time | 34 |
10.5%
|
| 6 | According to the harvest | 1 |
0.3%
|
| 98 | Don’t know | 0 |
0%
|
| Sysmiss | 4889 |