flow duration cumsum 0 0.077 10.387 10.387 1 0.128 20.435 30.822 2 0.146 30.118 60.940 3 1.250 5.463 66.403 4 0.119 94.188 160.591 5 0.082 19.741 180.332 6 0.083 11.515 191.847 7 0.104 19.821 211.668 8 0.121 107.303 318.971 9 0.174 38.368 357.339