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 0.02400245 0.0 0.0960098 3 h after dark 0.0 0.0 0.0 6 h after dark 0.033891 0.0 0.101673 9 h after dark 0.0 0.0 0.0 12 h after dark 0.090749 0.0 0.181498