Monthly Thousands Of Long Tons
1920-09-01 270.000
1920-10-01 187.000
1920-11-01 220.000
1920-12-01 189.000
1921-01-01 152.000
1921-02-01 251.000
1921-03-01 424.000
1921-04-01 365.000
1921-05-01 338.000
1921-06-01 304.000
1921-07-01 309.000
1921-08-01 422.000
1921-09-01 267.000
1921-10-01 265.000
1921-11-01 272.000
1921-12-01 274.000
1922-01-01 301.000
1922-02-01 436.000
1922-03-01 535.000
1922-04-01 551.000
1922-05-01 559.000
1922-06-01 547.000
1922-07-01 523.000
1922-08-01 553.000
1922-09-01 345.000
1922-10-01 307.000
1922-11-01 318.000
1922-12-01 256.000
1923-01-01 284.000
1923-02-01 401.000
1923-03-01 521.000
1923-04-01 463.000
1923-05-01 489.000
1923-06-01 395.000
1923-07-01 310.000
1923-08-01 292.000
1923-09-01 251.000
1923-10-01 389.000
1923-11-01 272.000
1923-12-01 230.000
1924-01-01 275.000
1924-02-01 433.000
1924-03-01 456.000
1924-04-01 433.000
1924-05-01 422.000
1924-06-01 476.000
1924-07-01 514.000
1924-08-01 459.000
1924-09-01 434.000
1924-10-01 340.000
1924-11-01 233.000
1924-12-01 190.000
1925-01-01 281.000
1925-02-01 412.000
1925-03-01 571.000
1925-04-01 555.000
1925-05-01 434.000
1925-06-01 520.000
1925-07-01 481.000
1925-08-01 461.000
1925-09-01 454.000
1925-10-01 399.000
1925-11-01 269.000
1925-12-01 348.000
1926-01-01 366.000
1926-02-01 442.000
1926-03-01 511.000
1926-04-01 460.000
1926-05-01 450.000
1926-06-01 497.000
1926-07-01 471.000
1926-08-01 459.000
1926-09-01 443.000
1926-10-01 471.000
1926-11-01 372.000
1926-12-01 302.000
1927-01-01 267.000
1927-02-01 358.000
1927-03-01 521.000
1927-04-01 500.000
1927-05-01 481.000
1927-06-01 494.000
1927-07-01 472.000
1927-08-01 459.000
1927-09-01 399.000
1927-10-01 382.000
1927-11-01 314.000
1927-12-01 277.000
1928-01-01 314.000
1928-02-01 313.000
1928-03-01 464.000
1928-04-01 408.000
1928-05-01 382.000
1928-06-01 402.000
1928-07-01 429.000
1928-08-01 481.000
1928-09-01 413.000
1928-10-01 439.000
1928-11-01 398.000
1928-12-01 297.000
1929-01-01 334.000
1929-02-01 380.000
1929-03-01 499.000
1929-04-01 495.000
1929-05-01 422.000
1929-06-01 446.000
1929-07-01 468.000
1929-08-01 495.000
1929-09-01 334.000
1929-10-01 387.000
1929-11-01 304.000
1929-12-01 236.000
1930-01-01 352.000
1930-02-01 329.000
1930-03-01 428.000
1930-04-01 457.000
1930-05-01 455.000
1930-06-01 403.000
1930-07-01 507.000
1930-08-01 360.000
1930-09-01 418.000
1930-10-01 402.000
1930-11-01 343.000
1930-12-01 224.000
1931-01-01 246.000
1931-02-01 302.000
1931-03-01 355.000
1931-04-01 393.000
1931-05-01 346.000
1931-06-01 412.000
1931-07-01 470.000
1931-08-01 410.000
1931-09-01 375.000
1931-10-01 351.000
1931-11-01 247.000
1931-12-01 245.000
1932-01-01 261.000
1932-02-01 265.000
1932-03-01 316.000
1932-04-01 311.000
1932-05-01 343.000
1932-06-01 367.000
1932-07-01 379.000
1932-08-01 398.000
1932-09-01 363.000
1932-10-01 301.000
1932-11-01 243.000
1932-12-01 207.000
1933-01-01 228.000
1933-02-01 226.000
1933-03-01 323.000
1933-04-01 350.000
1933-05-01 396.000
1933-06-01 389.000
1933-07-01 370.000
1933-08-01 381.000
1933-09-01 295.000
1933-10-01 281.000
1933-11-01 241.000
1933-12-01 162.000
1934-01-01 222.000
1934-02-01 256.000
1934-03-01 308.000
1934-04-01 279.000
1934-05-01 317.000
1934-06-01 372.000
1934-07-01 315.000
1934-08-01 290.000
1934-09-01 353.000
1934-10-01 388.000
1934-11-01 298.000
1934-12-01 226.000
1935-01-01 335.000
1935-02-01 301.000
1935-03-01 340.000
1935-04-01 362.000
1935-05-01 399.000
1935-06-01 329.000
1935-07-01 396.000
1935-08-01 350.000
1935-09-01 309.000
1935-10-01 299.000
1935-11-01 248.000
1935-12-01 198.000
1936-01-01 318.000
1936-02-01 335.000
1936-03-01 441.000
1936-04-01 430.000
1936-05-01 334.000
1936-06-01 412.000
1936-07-01 369.000
1936-08-01 305.000
1936-09-01 279.000
1936-10-01 259.000
1936-11-01 231.000
1936-12-01 249.000
1937-01-01 231.000
1937-02-01 314.000
1937-03-01 515.000
1937-04-01 556.000
1937-05-01 410.000
1937-06-01 330.000
1937-07-01 425.000
1937-08-01 420.000
1937-09-01 181.000
1937-10-01 266.000
1937-11-01 293.000
1937-12-01 321.000
1938-01-01 245.000
1938-02-01 290.000
1938-03-01 301.000
1938-04-01 344.000
1938-05-01 343.000
1938-06-01 375.000
1938-07-01 383.000
1938-08-01 392.000
1938-09-01 426.000
1938-10-01 376.000
1938-11-01 292.000
1938-12-01 237.000