P(torr)	cross sect.	uncertainty
	at 200.59 nm	
-----------------------------------
 78	8.45e-24	3.15e-24
200	1.02e-23	2.94e-24
300	1.26e-23	2.06e-24
400	1.43e-23	1.48e-24
500	1.57e-23	1.13e-24
760	1.99e-23	9.90e-25