R1/R2	281	271	261	251	241	231
321	0.495	6.93	9.545	20.26	21.115	20.205
311	0.505	7.485	11.43	22.705	23.845	23.535
301	0.545	8.59	11.825	22.78	23.385	22.61
291	0.595	9.2	12.59	28.89	30.13	30.395
281	1.065	9.135	13.465	30.35	31.775	32.765
271	1.09	9.32	14.115	31.665	34.12	35.26