Table of inside diameter of rings

Size	Diameter (mm)	Size	Diameter (mm)
40	12.732	58	18.465
41	13.052	59	18.783
42	13.37	60	19.101
43	13.689	61	19.42
44	14.007	62	19.738
45	14.326	63	20.056
46	14.644	64	20.375
47	14.964	65	20.693
48	15.281	66	21.011
49	15.6	67	21.33
50	15.918	68	21.648
51	16.236	69	21.966
52	16.554	70	22.285
53	16.873	71	22.603
54	17.191	72	22.921
55	17.509	73	23.24
56	17.828	75	23.877
57	18.146