condition mean min max 4 h after light 0.7161035 0.604884 0.827323 8 h after light 0.45956949999999996 0.425237 0.493902 12 h after light 1.0828605 0.571521 1.5942 4 h after dark 1.042446 0.955102 1.12979 8 h after dark 1.532605 1.2346 1.83061 12 h after dark 0.8291405000000001 0.594551 1.06373