condition mean min max 0 h after light 3.72818 3.21069 4.24567 4 h after light 5.73 5.57139 5.88861 8 h after light 4.97073 4.32001 5.62145 4 h after dark 8.786095 7.44179 10.1304 8 h after dark 5.1429 4.84694 5.43886 12 h after dark 6.20627 5.38671 7.02583