P/Pth	Blueshift
1.02439	0.34259
1.12195	0.36871
1.21951	0.38641
1.31707	0.40394
1.41463	0.42147
1.5122	0.43917
1.59918	0.45011
1.70732	0.46542
1.80488	0.48297
1.95122	0.50053