Month Millions Of Car-Miles 1918-01-01 932.000 1918-02-01 1046.00 1918-03-01 1342.00 1918-04-01 1293.00 1918-05-01 1354.00 1918-06-01 1332.00 1918-07-01 1306.00 1918-08-01 1355.00 1918-09-01 1333.00 1918-10-01 1340.00 1918-11-01 1207.00 1918-12-01 1128.00 1919-01-01 1048.00 1919-02-01 928.000 1919-03-01 1043.00 1919-04-01 1048.00 1919-05-01 1166.00 1919-06-01 1160.00 1919-07-01 1255.00 1919-08-01 1300.00 1919-09-01 1367.00 1919-10-01 1443.00 1919-11-01 1240.00 1919-12-01 1206.00 1920-01-01 1236.00 1920-02-01 1164.00 1920-03-01 1346.00 1920-04-01 1001.00 1920-05-01 1342.00 1920-06-01 1324.00 1920-07-01 1370.00 1920-08-01 1435.00 1920-09-01 1368.00 1920-10-01 1424.00 1920-11-01 1231.00 1920-12-01 1115.00 1921-01-01 988.000 1921-02-01 878.000 1921-03-01 987.000 1921-04-01 952.000 1921-05-01 1015.00 1921-06-01 1016.00 1921-07-01 1034.00 1921-08-01 1109.00 1921-09-01 1138.00 1921-10-01 1346.00 1921-11-01 1075.00 1921-12-01 961.000 1922-01-01 982.000 1922-02-01 1006.00 1922-03-01 1187.00 1922-04-01 1013.00 1922-05-01 1118.00 1922-06-01 1144.00 1922-07-01 1082.00 1922-08-01 1160.00 1922-09-01 1259.00 1922-10-01 1416.00 1922-11-01 1350.00 1922-12-01 1268.00 1923-01-01 1302.00 1923-02-01 1156.00 1923-03-01 1408.00 1923-04-01 1384.00 1923-05-01 1415.00 1923-06-01 1348.00 1923-07-01 1354.00 1923-08-01 1414.00 1923-09-01 1441.00 1923-10-01 1564.00 1923-11-01 1411.00 1923-12-01 1229.00 1924-01-01 1245.00 1924-02-01 1303.00 1924-03-01 1370.00 1924-04-01 1242.00 1924-05-01 1283.00 1924-06-01 1198.00 1924-07-01 1240.00 1924-08-01 1343.00 1924-09-01 1445.00 1924-10-01 1578.00 1924-11-01 1398.00 1924-12-01 1270.00 1925-01-01 1322.00 1925-02-01 1235.00 1925-03-01 1352.00 1925-04-01 1298.00 1925-05-01 1383.00 1925-06-01 1331.00 1925-07-01 1394.00 1925-08-01 1500.00 1925-09-01 1543.00 1925-10-01 1676.00 1925-11-01 1500.00 1925-12-01 1373.00 1926-01-01 1368.00 1926-02-01 1300.00 1926-03-01 1464.00 1926-04-01 1388.00 1926-05-01 1489.00 1926-06-01 1436.00 1926-07-01 1511.00 1926-08-01 1568.00 1926-09-01 1626.00 1926-10-01 1757.00 1926-11-01 1522.00 1926-12-01 1398.00 1927-01-01 1382.00 1927-02-01 1332.00 1927-03-01 1529.00 1927-04-01 1416.00 1927-05-01 1490.00 1927-06-01 1423.00 1927-07-01 1423.00 1927-08-01 1520.00 1927-09-01 1583.00 1927-10-01 1716.00 1927-11-01 1390.00 1927-12-01 1276.00 1928-01-01 1333.00 1928-02-01 1344.00 1928-03-01 1513.00 1928-04-01 1401.00 1928-05-01 1493.00 1928-06-01 1420.00 1928-07-01 1472.00 1928-08-01 1558.00 1928-09-01 1638.00 1928-10-01 1788.00 1928-11-01 1530.00 1928-12-01 1370.00 1929-01-01 1426.00 1929-02-01 1398.00 1929-03-01 1559.00 1929-04-01 1498.00 1929-05-01 1576.00 1929-06-01 1528.00 1929-07-01 1538.00 1929-08-01 1633.00 1929-09-01 1634.00 1929-10-01 1780.00 1929-11-01 1424.00 1929-12-01 1287.00 1930-01-01 1330.00 1930-02-01 1274.00 1930-03-01 1383.00 1930-04-01 1357.00 1930-05-01 1390.00 1930-06-01 1292.00 1930-07-01 1312.00 1930-08-01 1367.00 1930-09-01 1354.00 1930-10-01 1490.00 1930-11-01 1215.00 1930-12-01 1077.00 1931-01-01 1130.00 1931-02-01 1042.00 1931-03-01 1184.00 1931-04-01 1153.00 1931-05-01 1196.00 1931-06-01 1115.00 1931-07-01 1155.00 1931-08-01 1115.00 1931-09-01 1075.00 1931-10-01 1183.00 1931-11-01 985.000 1931-12-01 888.000 1932-01-01 912.000 1932-02-01 856.000 1932-03-01 938.000 1932-04-01 892.000 1932-05-01 846.000 1932-06-01 805.000 1932-07-01 788.000 1932-08-01 800.000 1932-09-01 899.000 1932-10-01 1024.00 1932-11-01 838.000 1932-12-01 796.000 1933-01-01 787.000 1933-02-01 736.000 1933-03-01 784.000 1933-04-01 830.000 1933-05-01 898.000 1933-06-01 952.000 1933-07-01 1009.00 1933-08-01 983.000 1933-09-01 986.000 1933-10-01 1021.00 1933-11-01 917.000 1933-12-01 836.000 1934-01-01 909.000 1934-02-01 878.000 1934-03-01 1054.00 1934-04-01 956.000 1934-05-01 1001.00 1934-06-01 991.000 1934-07-01 962.000 1934-08-01 1013.00 1934-09-01 1019.00 1934-10-01 1035.00 1934-11-01 917.000 1934-12-01 882.000 1935-01-01 943.000 1935-02-01 910.000 1935-03-01 1047.00 1935-04-01 960.000 1935-05-01 981.000 1935-06-01 990.000 1935-07-01 929.000 1935-08-01 999.000 1935-09-01 1048.00 1935-10-01 1196.00 1935-11-01 1046.00 1935-12-01 987.000 1936-01-01 1033.00 1936-02-01 1036.00 1936-03-01 1096.00 1936-04-01 1101.00 1936-05-01 1152.00 1936-06-01 1107.00 1936-07-01 1177.00 1936-08-01 1188.00 1936-09-01 1202.00 1936-10-01 1354.00 1936-11-01 1246.00 1936-12-01 1245.00 1937-01-01 1225.00 1937-02-01 1171.00 1937-03-01 1333.00 1937-04-01 1243.00 1937-05-01 1283.00 1937-06-01 1191.00 1937-07-01 1235.00 1937-08-01 1220.00 1937-09-01 1248.00 1937-10-01 1352.00 1937-11-01 1089.00 1937-12-01 1016.00 1938-01-01 998.000 1938-02-01 896.000 1938-03-01 1030.00 1938-04-01 929.000 1938-05-01 952.000 1938-06-01 940.000 1938-07-01 1002.00 1938-08-01 1026.00 1938-09-01 1079.00 1938-10-01 1225.00 1938-11-01 1064.00 1938-12-01 1047.00 1939-01-01 1053.00 1939-02-01 958.000 1939-03-01 1110.00 1939-04-01 1011.00 1939-05-01 1037.00 1939-06-01 1078.00 1939-07-01 1093.00 1939-08-01 1128.00 1939-09-01 1284.00 1939-10-01 1404.00 1939-11-01 1242.00 1939-12-01 1157.00 1940-01-01 1163.00 1940-02-01 1087.00 1940-03-01 1177.00 1940-04-01 1128.00 1940-05-01 1205.00 1940-06-01 1190.00 1940-07-01 1177.00 1940-08-01 1266.00 1940-09-01 1305.00 1940-10-01 1413.00 1940-11-01 1303.00 1940-12-01 1270.00 1941-01-01 1309.00 1941-02-01 1241.00 1941-03-01 1464.00 1941-04-01 1277.00 1941-05-01 1542.00 1941-06-01 1528.00 1941-07-01 1571.00 1941-08-01 1647.00 1941-09-01 1606.00 1941-10-01 1750.00 1941-11-01 1591.00 1941-12-01 1545.00 1942-01-01 1614.00 1942-02-01 1515.00 1942-03-01 1739.00 1942-04-01 1735.00 1942-05-01 1827.00 1942-06-01 1764.00 1942-07-01 1843.00 1942-08-01 1906.00 1942-09-01 1898.00 1942-10-01 2034.00 1942-11-01 1807.00 1942-12-01 1743.00 1943-01-01 1746.00 1943-02-01 1717.00 1943-03-01 1923.00 1943-04-01 1889.00 1943-05-01 1994.00 1943-06-01 1877.00 1943-07-01 2010.00 1943-08-01 2043.00