condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 10 h after light 0.0 0.0 0.0 14 h after light 0.0568335 0.0 0.341001 18 h after light 0.043554166666666665 0.0 0.261325 2 h after dark 0.0 0.0 0.0