wavel.	cross section	one standard deviation

216.30	5.15e-18	3.14e-18
231.20	3.53e-18	7.50e-19
248.40	9.37e-19	1.57e-19
268.30	2.46e-19	1.78e-19
291.80	9.55e-19	5.32e-19
319.60	7.03e-18	1.28e-18
353.40	1.19e-18	6.00e-19
395.20	1.55e-18	1.52e-18