condition mean min max 4 h after light 6.072795 5.41448 6.73111 8 h after light 5.675314999999999 4.99732 6.35331 12 h after light 5.989039999999999 5.88141 6.09667 4 h after dark 10.46505 10.1731 10.757 8 h after dark 10.121825000000001 9.60265 10.641 12 h after dark 8.625554999999999 8.54088 8.71023