condition mean min max 3 h after light 0.0215231 0.0 0.0645693 6 h after light 0.04265566666666667 0.0 0.127967 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 0.0 0.0 0.0 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0