Table 3: Exceedance percentages of the current scenarios without GIs.
| Sub-basin | Current scenario exceedance rates (%) |
| 2-year | 10-year | 25-year | 100-year |
| 1 | 1.90 | 45.02 | 64.69 | 78.69 |
| 2 | 1.92 | 43.96 | 64.25 | 78.45 |
| 3 | 1.94 | 44.32 | 64.11 | 78.59 |
| 4 | 1.62 | 43.91 | 64.24 | 78.89 |
| 5 | 1.62 | 43.47 | 63.93 | 78.81 |
| 6 | 0.00 | 47.59 | 60.82 | 73.61 |
| 7 | 1.92 | 57.50 | 71.70 | 82.04 |
| 8 | 1.91 | 57.38 | 71.60 | 82.03 |
| 9 | 1.17 | 59.28 | 70.04 | 79.90 |
| 10 | 2.13 | 61.34 | 76.65 | 85.85 |
| 11 | 2.29 | 62.33 | 77.71 | 86.54 |
| 12 | 1.71 | 62.77 | 77.43 | 86.46 |
| 13 | 20.73 | 67.68 | 78.94 | 86.38 |
| 14 | 8.90 | 66.68 | 78.87 | 86.80 |