condition mean min max 4 h after light 116.7 116.7 116.7 8 h after light 94.9 88.8 101.0 12 h after light 148.6 106.2 191.0 4 h after dark 135.65 109.7 161.6 8 h after dark 156.89999999999998 148.2 165.6 12 h after dark 121.1 110.6 131.6