condition mean min max 2 h after light 0.20226916666666667 0.0 0.619755 6 h after light 0.09629850000000001 0.0 0.577791 10 h after light 0.1004085 0.0 0.602451 14 h after light 0.0 0.0 0.0 18 h after light 0.10829166666666667 0.0 0.64975 2 h after dark 0.0 0.0 0.0