T\X	Cp
-100	1.52
-80	1.562
-60	1.604
-40	1.646
-20	1.688
0	1.73
20	1.772
40	1.814
60	1.856
80	1.898
100	1.94
120	1.982
140	2.024
160	2.066
180	2.108
200	2.15
220	2.192
240	2.234
260	2.276