Month Millions Of Passenger Car-Miles 1935-01-01 141.500 1935-02-01 123.100 1935-03-01 136.000 1935-04-01 131.900 1935-05-01 133.000 1935-06-01 135.000 1935-07-01 144.800 1935-08-01 148.400 1935-09-01 139.400 1935-10-01 136.500 1935-11-01 131.700 1935-12-01 147.700 1936-01-01 137.700 1936-02-01 123.500 1936-03-01 129.800 1936-04-01 128.500 1936-05-01 128.300 1936-06-01 132.700 1936-07-01 148.700 1936-08-01 148.400 1936-09-01 143.500 1936-10-01 142.300 1936-11-01 133.900 1936-12-01 153.800 1937-01-01 153.200 1937-02-01 133.000 1937-03-01 148.800 1937-04-01 143.000 1937-05-01 140.700 1937-06-01 143.200 1937-07-01 158.200 1937-08-01 156.500 1937-09-01 151.000 1937-10-01 144.300 1937-11-01 134.900 1937-12-01 151.000 1938-01-01 150.700 1938-02-01 128.500 1938-03-01 139.000 1938-04-01 133.600 1938-05-01 130.500 1938-06-01 134.400 1938-07-01 146.700 1938-08-01 141.500 1938-09-01 137.000 1938-10-01 130.300 1938-11-01 124.600 1938-12-01 141.800 1939-01-01 142.800 1939-02-01 123.700 1939-03-01 136.500 1939-04-01 132.000 1939-05-01 132.600 1939-06-01 139.600 1939-07-01 155.000 1939-08-01 152.900 1939-09-01 144.900 1939-10-01 138.400 1939-11-01 127.800 1939-12-01 146.000 1940-01-01 147.500 1940-02-01 130.000 1940-03-01 141.000 1940-04-01 132.900 1940-05-01 130.700 1940-06-01 138.200 1940-07-01 151.700 1940-08-01 155.700 1940-09-01 142.800 1940-10-01 139.500 1940-11-01 129.200 1940-12-01 153.400 1941-01-01 156.900 1941-02-01 136.000 1941-03-01 153.000 1941-04-01 145.700 1941-05-01 143.100 1941-06-01 151.800 1941-07-01 162.000 1941-08-01 163.400 1941-09-01 151.900 1941-10-01 150.000 1941-11-01 144.900 1941-12-01 171.000 1942-01-01 172.300 1942-02-01 152.000 1942-03-01 166.400 1942-04-01 169.100 1942-05-01 175.100 1942-06-01 178.000 1942-07-01 194.400 1942-08-01 204.200 1942-09-01 207.400 1942-10-01 209.900 1942-11-01 209.600 1942-12-01 224.200 1943-01-01 220.800 1943-02-01 201.100 1943-03-01 229.200 1943-04-01 221.500 1943-05-01 224.300 1943-06-01 228.000 1943-07-01 247.000 1943-08-01 250.400