220 2.44e-18 225 2.18e-18 230 1.95e-18 235 1.71e-18 240 1.49e-18 245 1.23e-18 250 9.90e-19 255 7.40e-19 260 5.40e-19 270 2.40e-19 280 1.40e-19 290 4.00e-20 300 8.00e-20 320 4.00e-20