Month	Millions Of Car-Miles
1920-01-01	511.000
1920-02-01	456.000
1920-03-01	517.000
1920-04-01	463.000
1920-05-01	545.000
1920-06-01	581.000
1920-07-01	653.000
1920-08-01	671.000
1920-09-01	677.000
1920-10-01	736.000
1920-11-01	717.000
1920-12-01	735.000
1921-01-01	728.000
1921-02-01	559.000
1921-03-01	572.000
1921-04-01	538.000
1921-05-01	582.000
1921-06-01	590.000
1921-07-01	599.000
1921-08-01	615.000
1921-09-01	608.000
1921-10-01	687.000
1921-11-01	684.000
1921-12-01	578.000
1922-01-01	554.000
1922-02-01	565.000
1922-03-01	642.000
1922-04-01	530.000
1922-05-01	574.000
1922-06-01	591.000
1922-07-01	478.000
1922-08-01	475.000
1922-09-01	514.000
1922-10-01	611.000
1922-11-01	652.000
1922-12-01	651.000
1923-01-01	666.000
1923-02-01	549.000
1923-03-01	656.000
1923-04-01	692.000
1923-05-01	753.000
1923-06-01	721.000
1923-07-01	762.000
1923-08-01	747.000
1923-09-01	724.000
1923-10-01	791.000
1923-11-01	766.000
1923-12-01	740.000
1924-01-01	671.000
1924-02-01	661.000
1924-03-01	713.000
1924-04-01	645.000
1924-05-01	698.000
1924-06-01	670.000
1924-07-01	722.000
1924-08-01	717.000
1924-09-01	733.000
1924-10-01	819.000
1924-11-01	761.000
1924-12-01	725.000
1925-01-01	737.000
1925-02-01	659.000
1925-03-01	707.000
1925-04-01	713.000
1925-05-01	764.000
1925-06-01	754.000
1925-07-01	787.000
1925-08-01	838.000
1925-09-01	812.000
1925-10-01	877.000
1925-11-01	857.000
1925-12-01	817.000
1926-01-01	790.000
1926-02-01	718.000
1926-03-01	816.000
1926-04-01	801.000
1926-05-01	836.000
1926-06-01	829.000
1926-07-01	870.000
1926-08-01	896.000
1926-09-01	861.000
1926-10-01	929.000
1926-11-01	907.000
1926-12-01	904.000
1927-01-01	850.000
1927-02-01	804.000
1927-03-01	879.000
1927-04-01	809.000
1927-05-01	858.000
1927-06-01	833.000
1927-07-01	843.000
1927-08-01	894.000
1927-09-01	883.000
1927-10-01	980.000
1927-11-01	878.000
1927-12-01	802.000
1928-01-01	797.000
1928-02-01	799.000
1928-03-01	866.000
1928-04-01	824.000
1928-05-01	897.000
1928-06-01	839.000
1928-07-01	869.000
1928-08-01	920.000
1928-09-01	888.000
1928-10-01	994.000
1928-11-01	933.000
1928-12-01	889.000
1929-01-01	823.000
1929-02-01	829.000
1929-03-01	903.000
1929-04-01	857.000
1929-05-01	935.000
1929-06-01	874.000
1929-07-01	920.000
1929-08-01	940.000
1929-09-01	915.000
1929-10-01	1007.00
1929-11-01	972.000
1929-12-01	867.000
1930-01-01	817.000
1930-02-01	793.000
1930-03-01	819.000
1930-04-01	826.000
1930-05-01	851.000
1930-06-01	800.000
1930-07-01	844.000
1930-08-01	851.000
1930-09-01	870.000
1930-10-01	932.000
1930-11-01	829.000
1930-12-01	732.000
1931-01-01	719.000
1931-02-01	664.000
1931-03-01	744.000
1931-04-01	735.000
1931-05-01	759.000
1931-06-01	721.000
1931-07-01	763.000
1931-08-01	729.000
1931-09-01	698.000
1931-10-01	759.000
1931-11-01	656.000
1931-12-01	592.000
1932-01-01	572.000
1932-02-01	552.000
1932-03-01	601.000
1932-04-01	563.000
1932-05-01	541.000
1932-06-01	514.000
1932-07-01	512.000
1932-08-01	520.000
1932-09-01	576.000
1932-10-01	682.000
1932-11-01	566.000
1932-12-01	537.000
1933-01-01	514.000
1933-02-01	479.000
1933-03-01	496.000
1933-04-01	514.000
1933-05-01	564.000
1933-06-01	583.000
1933-07-01	643.000
1933-08-01	638.000
1933-09-01	631.000
1933-10-01	671.000
1933-11-01	603.000
1933-12-01	544.000
1934-01-01	597.000
1934-02-01	545.000
1934-03-01	683.000
1934-04-01	608.000
1934-05-01	636.000
1934-06-01	625.000
1934-07-01	641.000
1934-08-01	645.000
1934-09-01	643.000
1934-10-01	669.000
1934-11-01	602.000
1934-12-01	565.000
1935-01-01	582.000
1935-02-01	589.000
1935-03-01	644.000
1935-04-01	602.000
1935-05-01	582.000
1935-06-01	578.000
1935-07-01	562.000
1935-08-01	583.000
1935-09-01	599.000
1935-10-01	688.000
1935-11-01	644.000
1935-12-01	632.000
1936-01-01	610.000
1936-02-01	600.000
1936-03-01	658.000
1936-04-01	637.000
1936-05-01	686.000
1936-06-01	656.000
1936-07-01	694.000
1936-08-01	685.000
1936-09-01	675.000
1936-10-01	756.000
1936-11-01	730.000
1936-12-01	773.000
1937-01-01	671.000
1937-02-01	647.000
1937-03-01	741.000
1937-04-01	693.000
1937-05-01	731.000
1937-06-01	703.000
1937-07-01	737.000
1937-08-01	723.000
1937-09-01	708.000
1937-10-01	807.000
1937-11-01	728.000
1937-12-01	692.000
1938-01-01	627.000
1938-02-01	573.000
1938-03-01	605.000
1938-04-01	588.000
1938-05-01	589.000
1938-06-01	583.000
1938-07-01	604.000
1938-08-01	653.000
1938-09-01	629.000
1938-10-01	734.000
1938-11-01	681.000
1938-12-01	692.000
1939-01-01	662.000
1939-02-01	605.000
1939-03-01	669.000
1939-04-01	600.000
1939-05-01	633.000
1939-06-01	650.000
1939-07-01	672.000
1939-08-01	691.000
1939-09-01	707.000
1939-10-01	813.000
1939-11-01	782.000
1939-12-01	733.000
1940-01-01	732.000
1940-02-01	717.000
1940-03-01	731.000
1940-04-01	709.000
1940-05-01	755.000
1940-06-01	712.000
1940-07-01	753.000
1940-08-01	762.000
1940-09-01	761.000
1940-10-01	835.000
1940-11-01	794.000
1940-12-01	821.000
1941-01-01	784.000
1941-02-01	739.000
1941-03-01	823.000
1941-04-01	719.000
1941-05-01	845.000
1941-06-01	851.000
1941-07-01	896.000
1941-08-01	917.000
1941-09-01	870.000
1941-10-01	956.000
1941-11-01	914.000
1941-12-01	879.000
1942-01-01	869.000
1942-02-01	827.000
1942-03-01	1002.00
1942-04-01	1060.00
1942-05-01	1156.00
1942-06-01	1104.00
1942-07-01	1136.00
1942-08-01	1168.00
1942-09-01	1113.00
1942-10-01	1122.00
1942-11-01	1093.00
1942-12-01	1042.00
1943-01-01	1044.00
1943-02-01	943.000
1943-03-01	1106.00
1943-04-01	1111.00
1943-05-01	1137.00
1943-06-01	1081.00
1943-07-01	1141.00
1943-08-01	1140.00