Statistics for 77 Primary Interstate Highways

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Primary Interstate Highways	% Correct
A-1	93%
A-2	91%
A-3	91%
A-4	91%
I-2	91%
I-4	91%
I-5	91%
I-8	91%
I-10	89%
I-11	87%
I-12	87%
I-14	87%
I-15	87%
I-16	87%
I-17	87%
I-19	87%
I-20	87%
I-30	87%
I-40	87%
I-70	87%
I-90	87%
I-22	84%
I-25	84%
I-80	84%
I-24	82%
I-27	82%
I-26	80%
I-29	80%
I-35	80%
I-37	80%
I-39	80%
I-45	80%
I-49	80%
I-55	80%
I-64	80%
I-65	80%
I-75	80%
I-85	80%
I-95	80%
I-96	80%
I-41	78%
I-42	78%
I-43	78%
I-44	78%
I-57	78%
I-59	78%
I-69	78%
I-73	78%
I-77	78%
I-81	78%
I-66	76%
I-71	76%
I-72	76%
I-74	76%
I-76	76%
I-87	76%
I-88	76%
I-93	76%
I-94	76%
I-97	76%
I-99	76%
I-68	73%
I-78	73%
I-79	73%
I-82	73%
I-83	73%
I-84	73%
I-89	73%
I-91	73%
I-86	71%
H-1	47%
H-2	47%
H-3	47%
H-4	47%
PR-1	38%
PR-2	38%
PR-3	38%