| Cases | Trend of SDII (mm/day) | Trend of Annual Rainfall Amounts (mm) | Trend of Annual Number of Rainy Days |
| I | Increase | Decrease | Decrease |
| II | Increase | Increase | Increase |
| III | Increase | Increase | Decrease |
| IV | Decrease | Decrease | Decrease |
| V | Decrease | Increase | Increase |
| VI | Decrease | Decrease | Increase |