wavel.	cross sect.	uncertainty
----------------------------------
202.1	1.02e-23	 9%
204.0	9.8e-24		10%
206.0	9.8e-24		12%
208.0	8.8e-24		14%
209.9	8.5e-24		16%
211.9	8.0e-24		24%
213.9	8.0e-24		30%
215.8	7.1e-24		41%
217.8	6.7e-24		52%
219.8	4.8e-24		85%