condition mean min max 4 h after light 117.8 117.8 117.8 8 h after light 144.45 119.7 169.2 12 h after light 122.05 118.6 125.5 4 h after dark 152.7 117.3 188.1 8 h after dark 198.64999999999998 148.1 249.2 12 h after dark 142.45 112.6 172.3