condition mean min max 0 h after light 14.723700000000001 14.5031 14.9443 4 h after light 4.7750900000000005 4.69654 4.85364 8 h after light 6.1803 5.79972 6.56088 4 h after dark 9.052865 8.74902 9.35671 8 h after dark 9.791934999999999 9.75085 9.83302 12 h after dark 10.39403 8.94196 11.8461