condition mean min max 4 h after light 8.5 8.5 8.5 8 h after light 51.1 27.0 75.2 12 h after light 10.45 10.3 10.6 4 h after dark 26.099999999999998 16.4 35.8 8 h after dark 40.199999999999996 15.8 64.6 12 h after dark 76.7 60.0 93.4