7/16
20
0.515
0.485
0.562
0.531
0.25
0.32
0.316
0.65
1/2
20
0.546
0.516
0.625
0.594
0.281
0.383
0.379
0.72
5/8
18
0.577
0.547
0.75
0.719
0.281
0.477
0.473
0.87
3/4
16
0.703
0.673
0.875
0.844
0.344
0.602
0.598
1.01
15/16
14
0.827
0.797
1.062
1.062
0.438
0.723
0.719
1.23
1-1/8
12
0.89
0.86
1.25
1.25
0.531
0.867
0.863
1.44
1-1/2
12
1.015
0.985
1.75
1.688
0.562
1.144
1.14
2.02