Month	Net Ton-Miles Per Pound Of Fuel
1921-08-01	1.26200
1921-09-01	1.29900
1921-10-01	1.31700
1921-11-01	1.26900
1921-12-01	1.19300
1922-01-01	1.18400
1922-02-01	1.23700
1922-03-01	1.23500
1922-04-01	1.19900
1922-05-01	1.25500
1922-06-01	1.25700
1922-07-01	1.32600
1922-08-01	1.33200
1922-09-01	1.30900
1922-10-01	1.29000
1922-11-01	1.26200
1922-12-01	1.20000
1923-01-01	1.25100
1923-02-01	1.24600
1923-03-01	1.27800
1923-04-01	1.26800
1923-05-01	1.26900
1923-06-01	1.32100
1923-07-01	1.31600
1923-08-01	1.29400
1923-09-01	1.33900
1923-10-01	1.31000
1923-11-01	1.23500
1923-12-01	1.16500
1924-01-01	1.21900
1924-02-01	1.21500
1924-03-01	1.22800
1924-04-01	1.22700
1924-05-01	1.27200
1924-06-01	1.28300
1924-07-01	1.31000
1924-08-01	1.28400
1924-09-01	1.31700
1924-10-01	1.29000
1924-11-01	1.25500
1924-12-01	1.19700
1925-01-01	1.18500
1925-02-01	1.21100
1925-03-01	1.21700
1925-04-01	1.22000
1925-05-01	1.27400
1925-06-01	1.27600
1925-07-01	1.38400
1925-08-01	1.24100
1925-09-01	1.28400
1925-10-01	1.27900
1925-11-01	1.23100
1925-12-01	1.14900
1926-01-01	1.19700
1926-02-01	1.24400
1926-03-01	1.23400
1926-04-01	1.27100
1926-05-01	1.11300
1926-06-01	1.07300
1926-07-01	1.06500
1926-08-01	1.07600
1926-09-01	1.13600
1926-10-01	1.16400
1926-11-01	1.11700
1926-12-01	1.08500
1927-01-01	1.14900
1927-02-01	1.16700
1927-03-01	1.21300
1927-04-01	1.21100
1927-05-01	1.27900
1927-06-01	1.30500
1927-07-01	1.32800
1927-08-01	1.30400
1927-09-01	1.31200
1927-10-01	1.26800
1927-11-01	1.22400
1927-12-01	1.15700
1928-01-01	1.16000
1928-02-01	1.18400
1928-03-01	1.23800
1928-04-01	1.23200
1928-05-01	1.26200
1928-06-01	1.29400
1928-07-01	1.30700
1928-08-01	1.33100
1928-09-01	1.35200
1928-10-01	1.28600
1928-11-01	1.24300
1928-12-01	1.20300
1929-01-01	1.19600
1929-02-01	1.17500
1929-03-01	1.24800
1929-04-01	1.24000
1929-05-01	1.29400
1929-06-01	1.34200
1929-07-01	1.36800
1929-08-01	1.36200
1929-09-01	1.38100
1929-10-01	1.31900
1929-11-01	1.28400
1929-12-01	1.20300
1930-01-01	1.22200
1930-02-01	1.24600
1930-03-01	1.24100
1930-04-01	1.24800
1930-05-01	1.28600
1930-06-01	1.28700
1930-07-01	1.33100
1930-08-01	1.31900
1930-09-01	1.33000
1930-10-01	1.32400
1930-11-01	1.28700
1930-12-01	1.22600
1931-01-01	1.18200
1931-02-01	1.19100
1931-03-01	1.18800
1931-04-01	1.23200
1931-05-01	1.24000
1931-06-01	1.31000
1931-07-01	1.31700
1931-08-01	1.28700
1931-09-01	1.30900
1931-10-01	1.36300
1931-11-01	1.25800
1931-12-01	1.22700