condition mean min max 0 h after light 6.26304 5.97569 6.55039 4 h after light 13.80545 9.9959 17.615 8 h after light 4.482279999999999 4.43985 4.52471 4 h after dark 2.822715 2.08453 3.5609 8 h after dark 11.5103 11.4884 11.5322 12 h after dark 7.755125 6.94836 8.56189