condition mean min max 2 h after light 5.200671666666667 4.61062 6.25517 6 h after light 3.968285 3.20732 4.80487 10 h after light 4.127205 2.54504 5.46574 14 h after light 4.8483133333333335 3.6232 6.74975 18 h after light 4.615933333333333 3.61731 5.5512 2 h after dark 6.249454999999999 5.45787 8.37948