220 1.36e-18 225 1.17e-18 230 9.70e-19 235 7.90e-19 240 6.50e-19 245 5.30e-19 250 5.10e-19 255 4.00e-19 260 3.00e-19 265 2.50e-19 270 1.40e-19 275 1.10e-19 280 9.00e-20