Month	Cents Per Ton-Mile
1920-01-01	0.969000
1920-02-01	0.985000
1920-03-01	0.986000
1920-04-01	0.981000
1920-05-01	0.954000
1920-06-01	0.970000
1920-07-01	0.960000
1920-08-01	0.936000
1920-09-01	1.15400
1920-10-01	1.22600
1920-11-01	1.25500
1920-12-01	1.21700
1921-01-01	1.21500
1921-02-01	1.27400
1921-03-01	1.32000
1921-04-01	1.31600
1921-05-01	1.23600
1921-06-01	1.26100
1921-07-01	1.23400
1921-08-01	1.28000
1921-09-01	1.27100
1921-10-01	1.22900
1921-11-01	1.27300
1921-12-01	1.23900
1922-01-01	1.16500
1922-02-01	1.15300
1922-03-01	1.19900
1922-04-01	1.29200
1922-05-01	1.27200
1922-06-01	1.25100
1922-07-01	1.21000
1922-08-01	1.16800
1922-09-01	1.12100
1922-10-01	1.12600
1922-11-01	1.12000
1922-12-01	1.10700
1923-01-01	1.07700
1923-02-01	1.10700
1923-03-01	1.12700
1923-04-01	1.10800
1923-05-01	1.12400
1923-06-01	1.12900
1923-07-01	1.09600
1923-08-01	1.10800
1923-09-01	1.10100
1923-10-01	1.15100
1923-11-01	1.13900
1923-12-01	1.12200
1924-01-01	1.08700
1924-02-01	1.09500
1924-03-01	1.12500
1924-04-01	1.17600
1924-05-01	1.12700
1924-06-01	1.12200
1924-07-01	1.13400
1924-08-01	1.09700
1924-09-01	1.12400
1924-10-01	1.11600
1924-11-01	1.09400
1924-12-01	1.09500
1925-01-01	1.05700
1925-02-01	1.10000
1925-03-01	1.12800
1925-04-01	1.14200
1925-05-01	1.08100
1925-06-01	1.11500
1925-07-01	1.09300
1925-08-01	1.07000
1925-09-01	1.10300
1925-10-01	1.11400
1925-11-01	1.07900
1925-12-01	1.08500
1926-01-01	1.03100
1926-02-01	1.06600
1926-03-01	1.13300
1926-04-01	1.12100
1926-05-01	1.07800
1926-06-01	1.10900
1926-07-01	1.07600
1926-08-01	1.07800
1926-09-01	1.09100
1926-10-01	1.07200
1926-11-01	1.07100
1926-12-01	1.04700
1927-01-01	1.02600
1927-02-01	1.05600
1927-03-01	1.07800
1927-04-01	1.10600
1927-05-01	1.07900
1927-06-01	1.09500
1927-07-01	1.07200
1927-08-01	1.08600
1927-09-01	1.09200
1927-10-01	1.08700
1927-11-01	1.12300
1927-12-01	1.06500
1928-01-01	1.04400
1928-02-01	1.07600
1928-03-01	1.09400
1928-04-01	1.10700
1928-05-01	1.09700
1928-06-01	1.09500
1928-07-01	1.07800
1928-08-01	1.09100
1928-09-01	1.06800
1928-10-01	1.09500
1928-11-01	1.07500
1928-12-01	1.06000
1929-01-01	1.03900
1929-02-01	1.04700
1929-03-01	1.09000
1929-04-01	1.12400
1929-05-01	1.08900
1929-06-01	1.06300
1929-07-01	1.09200
1929-08-01	1.08500
1929-09-01	1.07400
1929-10-01	1.09500
1929-11-01	1.08300
1929-12-01	1.03500
1930-01-01	1.02600
1930-02-01	1.04800
1930-03-01	1.08900
1930-04-01	1.09800
1930-05-01	1.07200
1930-06-01	1.06300
1930-07-01	1.07100
1930-08-01	1.04100
1930-09-01	1.07300
1930-10-01	1.06300
1930-11-01	1.04800
1930-12-01	1.05300
1931-01-01	1.01500
1931-02-01	1.04900
1931-03-01	1.07300
1931-04-01	1.09200
1931-05-01	1.05200
1931-06-01	1.09100
1931-07-01	1.04900
1931-08-01	1.03900
1931-09-01	1.04900
1931-10-01	1.04500
1931-11-01	1.03500
1931-12-01	1.03700
1932-01-01	1.02000
1932-02-01	1.05100
1932-03-01	1.06100
1932-04-01	1.09000
1932-05-01	1.08600
1932-06-01	1.10500
1932-07-01	1.05100
1932-08-01	1.07700
1932-09-01	1.02900
1932-10-01	1.01000
1932-11-01	1.02000
1932-12-01	0.979000
1933-01-01	0.995000
1933-02-01	0.977000
1933-03-01	1.00900
1933-04-01	1.01200
1933-05-01	1.04600
1933-06-01	1.03600
1933-07-01	0.996000
1933-08-01	0.999000
1933-09-01	0.987000
1933-10-01	0.990000
1933-11-01	0.965000
1933-12-01	0.961000
1934-01-01	0.969000
1934-02-01	0.963000
1934-03-01	0.966000
1934-04-01	1.01500
1934-05-01	1.00700
1934-06-01	0.994000
1934-07-01	1.01100
1934-08-01	0.985000
1934-09-01	0.943000
1934-10-01	0.984000
1934-11-01	0.961000
1934-12-01	0.950000
1935-01-01	0.943000
1935-02-01	0.946000
1935-03-01	0.931000
1935-04-01	1.04300
1935-05-01	1.01800
1935-06-01	0.975000
1935-07-01	1.06100
1935-08-01	1.00700
1935-09-01	0.985000
1935-10-01	1.00000
1935-11-01	0.989000
1935-12-01	0.989000
1936-01-01	0.960000
1936-02-01	0.931000
1936-03-01	0.994000
1936-04-01	1.01500
1936-05-01	0.975000
1936-06-01	1.02300
1936-07-01	1.00200
1936-08-01	0.971000
1936-09-01	0.964000
1936-10-01	0.955000
1936-11-01	0.957000
1936-12-01	0.963000
1937-01-01	0.898000
1937-02-01	0.908000
1937-03-01	0.938000
1937-04-01	0.978000
1937-05-01	0.928000
1937-06-01	0.965000
1937-07-01	0.957000
1937-08-01	0.939000
1937-09-01	0.918000
1937-10-01	0.909000
1937-11-01	0.961000
1937-12-01	0.931000
1938-01-01	0.916000
1938-02-01	0.940000
1938-03-01	0.961000
1938-04-01	1.02000
1938-05-01	1.01200
1938-06-01	1.02000
1938-07-01	0.998000
1938-08-01	1.00300
1938-09-01	0.977000
1938-10-01	0.977000
1938-11-01	1.00400
1938-12-01	0.981000
1939-01-01	0.964000
1939-02-01	0.972000
1939-03-01	0.987000
1939-04-01	1.03500
1939-05-01	1.04400
1939-06-01	0.987000
1939-07-01	0.971000
1939-08-01	0.962000
1939-09-01	0.941000
1939-10-01	0.951000
1939-11-01	0.953000
1939-12-01	0.961000
1940-01-01	0.952000
1940-02-01	0.947000
1940-03-01	0.944000
1940-04-01	0.965000
1940-05-01	0.937000
1940-06-01	0.930000
1940-07-01	0.963000
1940-08-01	0.926000
1940-09-01	0.923000
1940-10-01	0.965000
1940-11-01	0.949000
1940-12-01	0.953000
1941-01-01	0.938000
1941-02-01	0.947000
1941-03-01	0.929000
1941-04-01	1.05200
1941-05-01	0.932000
1941-06-01	0.927000
1941-07-01	0.947000
1941-08-01	0.902000
1941-09-01	0.928000
1941-10-01	0.922000
1941-11-01	0.904000
1941-12-01	0.943000
1942-01-01	0.914000
1942-02-01	0.926000
1942-03-01	0.924000
1942-04-01	0.937000
1942-05-01	0.899000
1942-06-01	0.931000
1942-07-01	0.936000
1942-08-01	0.917000
1942-09-01	0.941000
1942-10-01	0.946000
1942-11-01	0.939000
1942-12-01	0.967000
1943-01-01	0.933000
1943-02-01	0.943000
1943-03-01	0.956000
1943-04-01	0.966000
1943-05-01	0.924000
1943-06-01	0.948000
1943-07-01	0.914000
1943-08-01	0.900000
1943-09-01	0.921000
1943-10-01	0.912000
1943-11-01	0.947000
1943-12-01	0.943000
1944-01-01	0.907000
1944-02-01	0.930000
1944-03-01	0.953000
1944-04-01	0.931000
1944-05-01	0.937000
1944-06-01	0.948000
1944-07-01	0.950000
1944-08-01	0.958000
1944-09-01	0.967000
1944-10-01	0.958000
1944-11-01	0.986000
1944-12-01	0.972000
1945-01-01	0.983000
1945-02-01	0.968000
1945-03-01	0.968000
1945-04-01	0.968000
1945-05-01	0.976000
1945-06-01	0.977000
1945-07-01	0.971000
1945-08-01	0.964000
1945-09-01	0.928000
1945-10-01	0.989000
1945-11-01	0.932000
1945-12-01	0.867000
1946-01-01	0.941000
1946-02-01	0.935000
1946-03-01	0.924000
1946-04-01	1.10100
1946-05-01	1.01200
1946-06-01	0.921000
1946-07-01	0.989000
1946-08-01	0.978000
1946-09-01	0.975000
1946-10-01	0.988000
1946-11-01	1.00700
1946-12-01	0.997000
1947-01-01	1.03400
1947-02-01	1.07000
1947-03-01	1.05500
1947-04-01	1.11500
1947-05-01	1.05500
1947-06-01	1.04300
1947-07-01	1.09400
1947-08-01	1.02900
1947-09-01	1.05800
1947-10-01	1.08900
1947-11-01	1.11400
1947-12-01	1.15900
1948-01-01	1.19700
1948-02-01	1.17600
1948-03-01	1.29000
1948-04-01	1.29500
1948-05-01	1.18300
1948-06-01	1.25900
1948-07-01	1.26500
1948-08-01	1.23300
1948-09-01	1.25800
1948-10-01	1.25100
1948-11-01	1.29800
1948-12-01	1.31300
1949-01-01	1.29700
1949-02-01	1.31600
1949-03-01	1.39800
1949-04-01	1.32200
1949-05-01	1.28400
1949-06-01	1.33300
1949-07-01	1.34600
1949-08-01	1.33800
1949-09-01	1.36400
1949-10-01	1.40000
1949-11-01	1.35600
1949-12-01	1.34300
1950-01-01	1.37000
1950-02-01	1.40700
1950-03-01	1.31800
1950-04-01	1.28900
1950-05-01	1.31400
1950-06-01	1.32600
1950-07-01	1.30500
1950-08-01	1.32400
1950-09-01	1.32000
1950-10-01	1.33200
1950-11-01	1.36300
1950-12-01	1.31000
1951-01-01	1.31900
1951-02-01	1.30800
1951-03-01	1.32600
1951-04-01	1.33800
1951-05-01	1.34200
1951-06-01	1.32300
1951-07-01	1.33400
1951-08-01	1.32600
1951-09-01	1.29800
1951-10-01	1.37400
1951-11-01	1.37000
1951-12-01	1.37300
1952-01-01	1.36600
1952-02-01	1.37000
1952-03-01	1.37200
1952-04-01	1.41200
1952-05-01	1.39300
1952-06-01	1.47600
1952-07-01	1.52400
1952-08-01	1.37600
1952-09-01	1.43100
1952-10-01	1.50300
1952-11-01	1.41700
1952-12-01	1.55300
1953-01-01	1.45800
1953-02-01	1.50200
1953-03-01	1.53600
1953-04-01	1.52300
1953-05-01	1.42900
1953-06-01	1.47400
1953-07-01	1.50900
1953-08-01	1.41600
1953-09-01	1.47000
1953-10-01	1.45300
1953-11-01	1.46600
1953-12-01	1.52000
1954-01-01	1.41700
1954-02-01	1.45900
1954-03-01	1.51000
1954-04-01	1.46900
1954-05-01	1.36400
1954-06-01	1.44300
1954-07-01	1.42700
1954-08-01	1.40500
1954-09-01	1.40200
1954-10-01	1.34400
1954-11-01	1.41500
1954-12-01	1.42000
1955-01-01	1.35800
1955-02-01	1.38200
1955-03-01	1.42400
1955-04-01	1.37200
1955-05-01	1.34500
1955-06-01	1.38900
1955-07-01	1.36600
1955-08-01	1.37300
1955-09-01	1.35100
1955-10-01	1.33200
1955-11-01	1.38500
1955-12-01	1.36600
1956-01-01	1.33900
1956-02-01	1.35400
1956-03-01	1.38500
1956-04-01	1.40000