condition mean min max 3 h after light 21.412633333333336 17.1918 24.1748 6 h after light 16.395266666666664 14.1517 18.1116 9 h after light 9.14658 8.65004 9.77502 12 h after light 10.7141125 5.79703 18.7436 3 h after dark 18.730166666666666 17.4609 20.559 6 h after dark 18.5752 18.3076 18.7379 9 h after dark 22.3478 21.2636 23.8643 12 h after dark 25.97285 24.5007 27.445