condition mean min max 0 h after light 9.043315 6.44013 11.6465 4 h after light 4.980285 4.44739 5.51318 8 h after light 1.7181565 0.840853 2.59546 4 h after dark 6.5850349999999995 6.46595 6.70412 8 h after dark 6.115025 4.69657 7.53348 12 h after dark 5.904 5.58092 6.22708