condition mean min max 4 h after light 7.97715 5.09957 9.83915 8 h after light 7.13212 2.07841 11.8742 12 h after light 9.12536 5.8018 11.8827 4 h after dark 10.480806666666666 7.97582 12.1389 8 h after dark 10.530289999999999 8.32737 11.9439 12 h after dark 9.391346666666667 8.68498 10.1602