condition mean min max 0 h after light 18.578699999999998 17.7181 19.4393 4 h after light 4.86741 3.28556 6.44926 8 h after light 2.5890250000000004 2.55215 2.6259 4 h after dark 4.580475 3.52884 5.63211 8 h after dark 7.6547149999999995 7.44036 7.86907 12 h after dark 14.46165 10.8902 18.0331