Month	Billions Of Ton-Miles
1907-04-01	19.8000
1907-05-01	21.3000
1907-06-01	20.4000
1907-07-01	20.0000
1907-08-01	20.8000
1907-09-01	19.7000
1907-10-01	21.8000
1907-11-01	19.7000
1907-12-01	16.6000
1908-01-01	16.2000
1908-02-01	14.4000
1908-03-01	17.7000
1908-04-01	15.2000
1908-05-01	15.5000
1908-06-01	16.1000
1908-07-01	16.7000
1908-08-01	17.4000
1908-09-01	18.8000
1908-10-01	20.8000
1908-11-01	21.0000
1908-12-01	19.8000
1909-01-01	17.6000
1909-02-01	16.6000
1909-03-01	19.8000
1909-04-01	18.0000
1909-05-01	18.4000
1909-06-01	18.5000
1909-07-01	18.7000
1909-08-01	20.2000
1909-09-01	22.1000
1909-10-01	23.8000
1909-11-01	24.1000
1909-12-01	21.2000
1910-01-01	21.2000
1910-02-01	20.9000
1910-03-01	24.6000
1910-04-01	21.1000
1910-05-01	22.3000
1910-06-01	21.3000
1910-07-01	20.1000
1910-08-01	22.0000
1910-09-01	22.7000
1910-10-01	23.8000
1910-11-01	22.6000
1910-12-01	22.5000
1911-01-01	21.4000
1911-02-01	18.7000
1911-03-01	22.1000
1911-04-01	19.4000
1911-05-01	21.0000
1911-06-01	21.2000
1911-07-01	20.6000
1911-08-01	22.5000
1911-09-01	22.9000
1911-10-01	25.3000
1911-11-01	23.7000
1911-12-01	23.4000
1912-01-01	21.7000
1912-02-01	23.2000
1912-03-01	25.6000
1912-04-01	21.7000
1912-05-01	23.1000
1912-06-01	23.6000
1912-07-01	23.9000
1912-08-01	25.7000
1912-09-01	25.7000
1912-10-01	29.0000
1912-11-01	27.8000
1912-12-01	26.7000
1913-01-01	26.0000
1913-02-01	24.2000
1913-03-01	25.1000
1913-04-01	24.4000
1913-05-01	26.8000
1913-06-01	25.4000
1913-07-01	25.3000
1913-08-01	27.4000
1913-09-01	27.1000
1913-10-01	29.6000
1913-11-01	26.9000
1913-12-01	25.0000
1914-01-01	22.9000
1914-02-01	20.5000
1914-03-01	25.7000
1914-04-01	22.6000
1914-05-01	22.5000
1914-06-01	23.1000
1916-04-01	30.5000
1916-05-01	27.7000
1916-06-01	28.8000
1916-07-01	30.4000
1916-08-01	34.2000
1916-09-01	33.1000
1916-10-01	36.2000
1916-11-01	34.9000
1916-12-01	32.7000
1917-01-01	32.7000
1917-02-01	28.4000
1917-03-01	31.7000
1917-04-01	34.3000
1917-05-01	38.6000
1917-06-01	38.5000
1917-07-01	37.1000
1917-08-01	36.0000
1917-09-01	35.5000
1917-10-01	38.2000
1917-11-01	36.4000
1917-12-01	32.0000
1918-01-01	27.6000
1918-02-01	29.7000
1918-03-01	37.7000
1918-04-01	38.0000
1918-05-01	37.5000
1918-06-01	37.7000
1918-07-01	39.3000
1918-08-01	40.8000
1918-09-01	39.6000
1918-10-01	39.8000
1918-11-01	35.6000
1918-12-01	33.6000
1919-01-01	30.4000
1919-02-01	25.7000
1919-03-01	28.8000
1919-04-01	28.6000
1919-05-01	32.3000
1919-06-01	31.9000
1919-07-01	34.9000
1919-08-01	36.4000
1919-09-01	38.7000
1919-10-01	40.4000
1919-11-01	32.5000
1919-12-01	33.4000
1920-01-01	35.0000
1920-02-01	33.0000
1920-03-01	37.9000
1920-04-01	28.6000
1920-05-01	37.9000
1920-06-01	38.2000
1920-07-01	40.4000
1920-08-01	42.7000
1920-09-01	41.0000
1920-10-01	42.6000
1920-11-01	37.3000
1920-12-01	34.7000
1921-01-01	29.8000
1921-02-01	24.9000
1921-03-01	26.8000
1921-04-01	25.6000
1921-05-01	28.2000
1921-06-01	28.1000
1921-07-01	28.4000
1921-08-01	30.4000
1921-09-01	30.9000
1921-10-01	36.7000
1921-11-01	29.2000
1921-12-01	25.7000
1922-01-01	27.2000
1922-02-01	28.5000
1922-03-01	32.9000
1922-04-01	24.7000
1922-05-01	27.9000
1922-06-01	29.1000
1922-07-01	27.1000
1922-08-01	30.5000
1922-09-01	34.3000
1922-10-01	39.3000
1922-11-01	38.1000
1922-12-01	36.3000
1923-01-01	37.7000
1923-02-01	32.6000
1923-03-01	39.2000
1923-04-01	38.3000
1923-05-01	39.6000
1923-06-01	38.0000
1923-07-01	38.5000
1923-08-01	40.3000
1923-09-01	39.5000
1923-10-01	42.2000
1923-11-01	38.2000
1923-12-01	33.4000
1924-01-01	34.5000
1924-02-01	36.0000
1924-03-01	36.4000
1924-04-01	31.9000
1924-05-01	33.9000
1924-06-01	32.0000
1924-07-01	33.2000
1924-08-01	36.5000
1924-09-01	39.1000
1924-10-01	43.1000
1924-11-01	38.1000
1924-12-01	35.0000
1925-01-01	37.0000
1925-02-01	33.6000
1925-03-01	35.3000
1925-04-01	33.6000
1925-05-01	37.1000
1925-06-01	35.9000
1925-07-01	37.9000
1925-08-01	41.7000
1925-09-01	41.3000
1925-10-01	44.1000
1925-11-01	40.8000
1925-12-01	37.9000
1926-01-01	37.7000
1926-02-01	35.4000
1926-03-01	38.7000
1926-04-01	36.3000
1926-05-01	39.8000
1926-06-01	39.3000
1926-07-01	41.7000
1926-08-01	43.7000
1926-09-01	44.3000
1926-10-01	48.3000
1926-11-01	43.4000
1926-12-01	40.1000
1927-01-01	39.2000
1927-02-01	37.3000
1927-03-01	41.8000
1927-04-01	37.1000
1927-05-01	40.1000
1927-06-01	38.5000
1927-07-01	38.4000
1927-08-01	42.0000
1927-09-01	43.0000
1927-10-01	45.5000
1927-11-01	37.2000
1927-12-01	34.6000
1928-01-01	36.3000
1928-02-01	35.7000
1928-03-01	39.5000
1928-04-01	35.9000
1928-05-01	39.3000
1928-06-01	37.3000
1928-07-01	39.2000
1928-08-01	42.4000
1928-09-01	43.8000
1928-10-01	48.2000
1928-11-01	42.0000
1928-12-01	37.7000
1929-01-01	39.2000
1929-02-01	38.1000
1929-03-01	40.2000
1929-04-01	38.3000
1929-05-01	41.8000
1929-06-01	40.7000
1929-07-01	42.0000
1929-08-01	45.0000
1929-09-01	44.2000
1929-10-01	47.8000
1929-11-01	38.7000
1929-12-01	36.0000
1930-01-01	36.7000
1930-02-01	34.3000
1930-03-01	35.3000
1930-04-01	34.9000
1930-05-01	36.6000
1930-06-01	34.4000
1930-07-01	35.6000
1930-08-01	37.4000
1930-09-01	36.2000
1930-10-01	39.3000
1930-11-01	32.3000
1930-12-01	29.0000
1931-01-01	30.3000
1931-02-01	27.1000
1931-03-01	30.0000
1931-04-01	28.7000
1931-05-01	30.0000
1931-06-01	28.3000
1931-07-01	30.3000
1931-08-01	29.4000
1931-09-01	27.8000
1931-10-01	30.6000
1931-11-01	25.1000
1931-12-01	22.7000
1932-01-01	22.9000
1932-02-01	21.6000
1932-03-01	23.5000
1932-04-01	21.3000
1932-05-01	19.9000
1932-06-01	18.7000
1932-07-01	19.1000
1932-08-01	20.1000
1932-09-01	22.7000
1932-10-01	26.4000
1932-11-01	21.8000
1932-12-01	21.1000
1933-01-01	20.0000
1933-02-01	19.1000
1933-03-01	19.4000
1933-04-01	19.8000
1933-05-01	21.7000
1933-06-01	23.7000
1933-07-01	26.4000
1933-08-01	26.5000
1933-09-01	26.1000
1933-10-01	26.4000
1933-11-01	23.9000
1933-12-01	22.0000
1934-01-01	23.8000
1934-02-01	23.2000
1934-03-01	27.8000
1934-04-01	23.5000
1934-05-01	25.3000
1934-06-01	25.2000
1934-07-01	24.3000
1934-08-01	25.4000
1934-09-01	25.9000
1934-10-01	26.5000
1934-11-01	23.8000
1934-12-01	23.1000
1935-01-01	25.0000
1935-02-01	24.1000
1935-03-01	27.6000
1935-04-01	23.3000
1935-05-01	24.7000
1935-06-01	26.0000
1935-07-01	23.2000
1935-08-01	25.9000
1935-09-01	27.7000
1935-10-01	31.2000
1935-11-01	27.5000
1935-12-01	26.2000
1936-01-01	27.9000
1936-02-01	29.2000
1936-03-01	28.0000
1936-04-01	28.1000
1936-05-01	29.9000
1936-06-01	28.8000
1936-07-01	31.1000
1936-08-01	32.1000
1936-09-01	33.0000
1936-10-01	37.1000
1936-11-01	33.9000
1936-12-01	34.0000
1937-01-01	33.1000
1937-02-01	32.2000
1937-03-01	36.7000
1937-04-01	32.3000
1937-05-01	34.1000
1937-06-01	31.9000
1937-07-01	33.7000
1937-08-01	33.7000
1937-09-01	34.9000
1937-10-01	36.8000
1937-11-01	29.1000
1937-12-01	27.4000
1938-01-01	26.4000
1938-02-01	23.2000
1938-03-01	26.0000
1938-04-01	22.8000
1938-05-01	23.7000
1938-06-01	23.9000
1938-07-01	26.3000
1938-08-01	27.4000
1938-09-01	29.1000
1938-10-01	32.8000
1938-11-01	28.5000
1938-12-01	28.1000
1939-01-01	28.2000
1939-02-01	25.6000
1939-03-01	28.8000
1939-04-01	24.0000
1939-05-01	25.7000
1939-06-01	28.5000
1939-07-01	29.8000
1939-08-01	31.4000
1939-09-01	36.1000
1939-10-01	40.1000
1939-11-01	35.1000
1939-12-01	31.5000
1940-01-01	32.5000
1940-02-01	29.7000
1940-03-01	31.1000
1940-04-01	29.9000
1940-05-01	33.1000
1940-06-01	32.9000
1940-07-01	33.7000
1940-08-01	36.4000
1940-09-01	37.1000
1940-10-01	38.6000
1940-11-01	36.0000
1940-12-01	34.9000
1941-01-01	36.1000
1941-02-01	34.2000
1941-03-01	40.6000
1941-04-01	31.6000
1941-05-01	43.4000
1941-06-01	44.0000
1941-07-01	46.1000
1941-08-01	49.2000
1941-09-01	47.6000
1941-10-01	51.1000
1941-11-01	46.0000
1941-12-01	44.5000
1942-01-01	46.7000
1942-02-01	44.1000
1942-03-01	51.9000
1942-04-01	53.6000
1942-05-01	58.5000
1942-06-01	57.3000
1942-07-01	60.7000
1942-10-01	66.0000
1942-11-01	60.5000
1942-12-01	58.4000
1943-01-01	58.9000
1943-02-01	58.1000
1943-03-01	64.7000
1943-04-01	62.9000
1943-05-01	66.5000
1943-06-01	61.3000
1943-07-01	68.2000
1943-08-01	69.0000