Return period (years) | 10 | 20 | 50 | 100 | 500 |
Return level (s) | 20.20 | 19.79 | 19.51 | 19.39 | 19.25 |
Standard error | 0.180 | 0.140 | 0.0976 | 0.0903 | 0.123 |
95% CI | (19.85, 20.55) | (19.51, 20.06) | (19.31, 19.69) | (19.21, 19.56) | (19.01, 19.49) |