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 0.01994705 0.0 0.0797882 3 h after dark 0.0 0.0 0.0 6 h after dark 0.04198833333333333 0.0 0.125965 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0