condition mean min max 4 h after light 10.144013333333334 9.99187 10.23178 8 h after light 10.816123333333334 10.717419999999999 10.86829 12 h after light 10.481936666666668 10.31666 10.65375 4 h after dark 10.93826 10.75821 11.084769999999999 8 h after dark 10.67817 10.553289999999999 10.77918 12 h after dark 10.009616666666666 9.80115 10.2588