condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.023721433333333333 0.0 0.0711643 9 h after dark 0.0 0.0 0.0 12 h after dark 0.026162666666666667 0.0 0.078488