Month Car-Miles 1920-01-01 23.1000 1920-02-01 23.9000 1920-03-01 25.0000 1920-04-01 22.6000 1920-05-01 25.7000 1920-06-01 25.5000 1920-07-01 25.2000 1920-08-01 25.6000 1920-09-01 24.9000 1920-10-01 24.7000 1920-11-01 22.8000 1920-12-01 21.1000 1921-01-01 20.5000 1921-02-01 21.8000 1921-03-01 23.1000 1921-04-01 23.7000 1921-05-01 24.2000 1921-06-01 24.2000 1921-07-01 24.0000 1921-08-01 24.5000 1921-09-01 25.0000 1921-10-01 25.8000 1921-11-01 23.3000 1921-12-01 22.7000 1922-01-01 22.8000 1922-02-01 23.8000 1922-03-01 24.9000 1922-04-01 25.1000 1922-05-01 25.4000 1922-06-01 25.8000 1922-07-01 25.7000 1922-08-01 26.2000 1922-09-01 26.4000 1922-10-01 26.3000 1922-11-01 25.5000 1922-12-01 23.8000 1923-01-01 23.9000 1923-02-01 23.8000 1923-03-01 25.5000 1923-04-01 26.1000 1923-05-01 25.9000 1923-06-01 25.9000 1923-07-01 25.7000 1923-08-01 26.1000 1923-09-01 26.8000 1923-10-01 26.7000 1923-11-01 25.9000 1923-12-01 24.6000 1924-01-01 24.0000 1924-02-01 25.6000 1924-03-01 26.4000 1924-04-01 26.5000 1924-05-01 26.6000 1924-06-01 26.5000 1924-07-01 26.3000 1924-08-01 27.5000 1924-09-01 28.1000 1924-10-01 28.2000 1924-11-01 27.3000 1924-12-01 24.8000 1925-01-01 25.3000 1925-02-01 26.6000 1925-03-01 27.5000 1925-04-01 27.5000 1925-05-01 28.1000 1925-06-01 27.6000 1925-07-01 27.8000 1925-08-01 28.6000 1925-09-01 29.1000 1925-10-01 28.9000 1925-11-01 27.8000 1925-12-01 26.0000 1926-01-01 26.1000 1926-02-01 27.0000 1926-03-01 27.6000 1926-04-01 27.7000 1926-05-01 28.9000 1926-06-01 28.5000 1926-07-01 28.7000 1926-08-01 29.4000 1926-09-01 29.9000 1926-10-01 30.1000 1926-11-01 27.8000 1926-12-01 25.9000 1927-01-01 26.3000 1927-02-01 27.6000 1927-03-01 28.7000 1927-04-01 28.8000 1927-05-01 29.2000 1927-06-01 29.0000 1927-07-01 29.0000 1927-08-01 29.5000 1927-09-01 30.2000 1927-10-01 30.3000 1927-11-01 28.1000 1927-12-01 26.5000 1928-01-01 27.4000 1928-02-01 28.5000 1928-03-01 29.7000 1928-04-01 29.6000 1928-05-01 29.8000 1928-06-01 29.8000 1928-07-01 29.9000 1928-08-01 30.2000 1928-09-01 31.5000 1928-10-01 31.2000 1928-11-01 29.6000 1928-12-01 27.9000 1929-01-01 28.0000 1929-02-01 28.5000 1929-03-01 30.2000 1929-04-01 30.3000 1929-05-01 30.6000 1929-06-01 31.0000 1929-07-01 30.0000 1929-08-01 31.0000 1929-09-01 31.6000 1929-10-01 31.4000 1929-11-01 28.4000 1929-12-01 26.9000 1930-01-01 27.4000 1930-02-01 29.0000 1930-03-01 29.8000 1930-04-01 30.0000 1930-05-01 30.2000 1930-06-01 30.0000 1930-07-01 29.4000 1930-08-01 30.5000 1930-09-01 30.5000 1930-10-01 30.8000 1930-11-01 28.7000 1930-12-01 26.7000 1931-01-01 28.2000 1931-02-01 28.7000 1931-03-01 29.3000 1931-04-01 29.2000 1931-05-01 29.4000 1931-06-01 28.4000 1931-07-01 28.2000 1931-08-01 28.6000 1931-09-01 28.7000 1931-10-01 29.4000 1931-11-01 27.7000 1931-12-01 25.8000 1932-01-01 27.0000 1932-02-01 26.8000 1932-03-01 27.0000 1932-04-01 27.4000 1932-05-01 26.5000 1932-06-01 26.2000 1932-07-01 25.7000 1932-08-01 25.9000 1932-09-01 27.9000 1932-10-01 28.1000 1932-11-01 25.9000 1932-12-01 24.6000 1933-01-01 25.6000 1933-02-01 25.4000 1933-03-01 25.8000 1933-04-01 27.6000 1933-05-01 27.7000 1933-06-01 28.8000 1933-07-01 28.8000 1933-08-01 28.1000 1933-09-01 28.6000 1933-10-01 28.0000 1933-11-01 27.0000 1933-12-01 25.6000 1934-01-01 26.4000 1934-02-01 26.9000 1934-03-01 28.0000 1934-04-01 28.0000 1934-05-01 28.0000 1934-06-01 28.2000 1934-07-01 27.3000 1934-08-01 28.0000 1934-09-01 28.7000 1934-10-01 27.8000 1934-11-01 27.1000 1934-12-01 26.1000 1935-01-01 26.7000 1935-02-01 27.5000 1935-03-01 28.7000 1935-04-01 27.9000 1935-05-01 28.1000 1935-06-01 29.0000 1935-07-01 27.4000 1935-08-01 28.6000 1935-09-01 29.6000 1935-10-01 30.0000 1935-11-01 28.5000 1935-12-01 27.0000 1936-01-01 26.8000 1936-02-01 26.9000 1936-03-01 28.2000 1936-04-01 29.0000 1936-05-01 29.5000 1936-06-01 29.1000 1936-07-01 29.3000 1936-08-01 29.6000 1936-09-01 29.9000 1936-10-01 30.4000 1936-11-01 29.6000 1936-12-01 28.4000 1937-01-01 28.4000 1937-02-01 29.0000 1937-03-01 29.8000 1937-04-01 29.9000 1937-05-01 30.3000 1937-06-01 29.3000 1937-07-01 29.5000 1937-08-01 29.8000 1937-09-01 30.5000 1937-10-01 30.6000 1937-11-01 28.2000 1937-12-01 26.9000 1938-01-01 27.8000 1938-02-01 27.8000 1938-03-01 29.2000 1938-04-01 28.2000 1938-05-01 28.8000 1938-06-01 28.7000 1938-07-01 29.4000 1938-08-01 29.2000 1938-09-01 30.6000 1938-10-01 31.2000 1938-11-01 29.2000 1938-12-01 28.4000 1939-01-01 29.0000 1939-02-01 28.6000 1939-03-01 29.8000 1939-04-01 29.3000 1939-05-01 29.2000 1939-06-01 30.1000 1939-07-01 30.1000 1939-08-01 30.3000 1939-09-01 32.6000 1939-10-01 32.2000 1939-11-01 30.8000 1939-12-01 29.9000 1940-01-01 28.4000 1940-02-01 29.1000 1940-03-01 30.4000 1940-04-01 30.3000 1940-05-01 31.0000 1940-06-01 31.6000 1940-07-01 30.3000 1940-08-01 31.4000 1940-09-01 32.6000 1940-10-01 32.2000 1940-11-01 31.3000 1940-12-01 30.0000 1941-01-01 30.5000 1941-02-01 31.0000 1941-03-01 32.1000 1941-04-01 31.0000 1941-05-01 33.1000 1941-06-01 33.0000 1941-07-01 32.3000 1941-08-01 33.1000 1941-09-01 32.8000 1941-10-01 32.9000 1941-11-01 32.2000 1941-12-01 31.1000 1942-01-01 31.5000 1942-02-01 31.9000 1942-03-01 32.5000 1942-04-01 32.5000 1942-05-01 32.6000 1942-06-01 32.6000 1942-07-01 32.6000 1942-08-01 33.2000 1942-09-01 33.3000 1942-10-01 33.9000 1942-11-01 32.3000 1942-12-01 30.9000 1943-01-01 30.6000 1943-02-01 32.1000 1943-03-01 32.3000 1943-04-01 32.8000 1943-05-01 33.8000 1943-06-01 33.3000 1943-07-01 34.1000 1943-08-01 34.7000