condition mean min max 4 h after light 126.73891 126.084042 127.393778 8 h after light 114.7320585 102.924368 126.539749 12 h after light 135.080034 126.539749 143.620319 4 h after dark 137.255003 128.410947 146.099059 8 h after dark 138.9952365 115.30898 162.681493 12 h after dark 108.886777 108.886777 108.886777