condition mean min max 4 h after light 8.92365 7.021 10.8263 8 h after light 4.92178 4.16178 5.68178 12 h after light 8.566870000000002 8.55239 8.58135 4 h after dark 13.701766666666668 10.9562 17.6875 8 h after dark 14.007666666666667 13.3393 15.0155 12 h after dark 7.29624 6.37027 8.31744