| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not decreased | 215 |
36.9%
|
| 2 | Yes, Significantly decreased | 93 |
16%
|
| 3 | Yes, No enough water level (except INAR) | 104 |
17.9%
|
| 8 | Don't know | 170 |
29.2%
|
| Sysmiss | 59 |