Month Million Current Dollars. 1923-01-01 244.100 1923-02-01 281.100 1923-03-01 376.100 1923-04-01 404.600 1923-05-01 433.300 1923-06-01 370.800 1923-07-01 314.900 1923-08-01 298.600 1923-09-01 288.900 1923-10-01 359.500 1923-11-01 318.800 1923-12-01 301.700 1924-01-01 299.300 1924-02-01 299.300 1924-03-01 433.300 1924-04-01 483.100 1924-05-01 419.100 1924-06-01 387.500 1924-07-01 344.700 1924-08-01 354.400 1924-09-01 344.200 1924-10-01 407.600 1924-11-01 378.700 1924-12-01 328.000 1925-01-01 296.400 1925-02-01 299.300 1925-03-01 480.900 1925-04-01 547.000 1925-05-01 496.000 1925-06-01 540.600 1925-07-01 528.900 1925-08-01 589.700 1925-09-01 547.200 1925-10-01 519.500 1925-11-01 464.700 1925-12-01 510.900 1926-01-01 443.400 1926-02-01 391.700 1926-03-01 602.800 1926-04-01 552.200 1926-05-01 520.700 1926-06-01 520.000 1926-07-01 500.800 1926-08-01 579.000 1926-09-01 544.600 1926-10-01 499.300 1926-11-01 473.700 1926-12-01 520.100 1927-01-01 369.000 1927-02-01 381.300 1927-03-01 595.800 1927-04-01 583.800 1927-05-01 530.700 1927-06-01 612.100 1927-07-01 513.900 1927-08-01 534.700 1927-09-01 505.800 1927-10-01 549.100 1927-11-01 443.500 1927-12-01 464.200 1928-01-01 410.600 1928-02-01 444.000 1928-03-01 572.900 1928-04-01 623.600 1928-05-01 640.400 1928-06-01 624.300 1928-07-01 564.200 1928-08-01 499.800 1928-09-01 566.500 1928-10-01 582.700 1928-11-01 452.300 1928-12-01 415.800 1929-01-01 393.700 1929-02-01 339.800 1929-03-01 463.700 1929-04-01 623.200 1929-05-01 566.000 1929-06-01 516.100 1929-07-01 624.900 1929-08-01 470.900 1929-09-01 429.300 1929-10-01 426.100 1929-11-01 378.100 1929-12-01 304.300