Monthly Millions Of Net Ton-Miles
1931-01-01 671.000
1931-02-01 620.000
1931-03-01 701.000
1931-04-01 663.000
1931-05-01 699.000
1931-06-01 643.000
1931-07-01 656.000
1931-08-01 650.000
1931-09-01 669.000
1931-10-01 712.000
1931-11-01 684.000
1931-12-01 616.000
1932-01-01 627.000
1932-02-01 608.000
1932-03-01 628.000
1932-04-01 598.000
1932-05-01 607.000
1932-06-01 585.000
1932-07-01 562.000
1932-08-01 557.000
1932-09-01 567.000
1932-10-01 616.000
1932-11-01 609.000
1932-12-01 458.000
1933-01-01 550.000
1933-02-01 533.000
1933-03-01 628.000
1933-04-01 591.000
1933-05-01 634.000
1933-06-01 592.000
1933-07-01 609.000
1933-08-01 625.000
1933-09-01 648.000
1933-10-01 709.000
1933-11-01 704.000
1933-12-01 640.000
1934-01-01 671.000
1934-02-01 642.000
1934-03-01 714.000
1934-04-01 672.000
1934-05-01 707.000
1934-06-01 665.000
1934-07-01 666.000
1934-08-01 677.000
1934-09-01 696.000
1934-10-01 752.000
1934-11-01 722.000
1934-12-01 648.000
1935-01-01 683.000
1935-02-01 637.000
1935-03-01 717.000
1935-04-01 677.000
1935-05-01 692.000
1935-06-01 683.000
1935-07-01 677.000
1935-08-01 684.000
1935-09-01 700.000
1935-10-01 774.000
1935-11-01 754.000
1935-12-01 681.000
1936-01-01 698.000
1936-02-01 699.000
1936-03-01 778.000
1936-04-01 741.000
1936-05-01 778.000
1936-06-01 737.000
1936-07-01 728.000
1936-08-01 748.000
1936-09-01 760.000
1936-10-01 828.000
1936-11-01 782.000
1936-12-01 759.000
1937-01-01 744.000
1937-02-01 707.000
1937-03-01 807.000
1937-04-01 784.000
1937-05-01 815.000
1937-06-01 799.000
1937-07-01 780.000
1937-08-01 799.000
1937-09-01 822.000
1937-10-01 861.000
1937-11-01 814.000
1937-12-01 774.000
1938-01-01 762.000
1938-02-01 726.000
1938-03-01 802.000
1938-04-01 732.000
1938-05-01 714.000
1938-06-01 669.000
1938-07-01 632.000
1938-08-01 648.000
1938-09-01 671.000
1938-10-01 730.000
1938-11-01 683.000
1938-12-01 664.000
1939-01-01 646.000
1939-02-01 663.000
1939-03-01 773.000
1939-04-01 752.000
