condition mean min max 0 h after light 9.182835 8.71729 9.64838 4 h after light 7.33709 5.47542 9.19876 8 h after light 2.00648 1.97661 2.03635 4 h after dark 4.05346 2.78432 5.3226 8 h after dark 7.826575 7.57312 8.08003 12 h after dark 11.395499999999998 10.8205 11.9705