wavel.	cross sect.	error limit

174	5.45e-18	1.2e-19
176	7.34e-18	1.3e-19
178	7.13e-18	1.3e-19
180	8.26e-18	1.4e-19
182	1.110e-17	2.0e-19
186	1.850e-17	3.0e-19
192	3.020e-17	5.0e-19
198	3.330e-17	4.0e-19
204	2.460e-17	4.0e-19
210	1.780e-17	3.0e-19
216	1.130e-17	2.0e-19
222	7.31e-18	1.1e-19
228	3.79e-18	5.0e-20
234	1.49e-18	2.0e-20
240	4.27e-19	6.0e-21
246	9.86e-20	1.4e-21
252	1.94e-20	3.0e-22
258	3.59e-21	7.0e-23	
264	4.9e-22		4.0e-23
270	2.10e-20	4.0e-22