wavel.	cross section	one standard deviation

216.3	1.31e-17	5.8e-18
231.2	2.28e-18	7.1e-19
248.4	1.19e-18	1.80-19
268.3	9.49e-19	1.74e-19
291.8	1.45e-18	2.5e-19
319.6	3.45e-18	5.9e-19
353.4	5.56e-19	2.11e-19
395.2	7.17e-19	5.65e-19