wavel.	cross section	error limit

200	6.05e-18	3.0e-19
205	6.53e-18	5.0e-19
207	6.71e-18	1.9e-19
210	6.40e-18	3.0e-19
215	5.46e-18	9.0e-20
220	4.32e-18	2.0e-19
225	3.65e-18	3.1e-19
230	3.22e-18	3.0e-19
235	3.37e-18	1.8e-19
240	3.30e-18	2.5e-19
245	3.23e-18	1.2e-19
250	2.81e-18	2.7e-19
255	2.69e-18	3.1e-19
260	2.11e-18	3.2e-19
265	1.91e-18	2.4e-19
270	1.39e-18	1.5e-19
275	1.12e-18	2.5e-19
280	7.80e-19	4.1e-19