condition mean min max 4 h after light 12.4 12.4 12.4 8 h after light 93.7 7.6 179.8 12 h after light 68.35 53.2 83.5 4 h after dark 69.2 61.2 77.2 8 h after dark 36.15 22.8 49.5 12 h after dark 46.949999999999996 9.6 84.3