Month Millions Of Dollars: Seasonally Adjusted By Source 1914-06-01 3498 1914-09-01 3473 1914-10-01 3622 1914-12-01 3528 1915-03-01 3599 1915-05-01 3626 1915-06-01 3703 1915-09-01 3788 1915-11-01 3954 1915-12-01 4037 1916-03-01 4180 1916-05-01 4253 1916-06-01 4389 1916-09-01 4500 1916-11-01 4680 1916-12-01 4771 1917-03-01 4934 1917-05-01 4996 1917-06-01 5028 1917-09-01 5093 1917-11-01 5091 1917-12-01 5186 1918-03-01 5234 1918-05-01 5264 1918-06-01 5304 1918-08-01 5413 1918-11-01 5502 1918-12-01 5696 1919-03-01 5962 1919-05-01 6125 1919-06-01 6239 1919-09-01 6489 1919-11-01 6852 1919-12-01 6879 1920-02-01 7160 1920-05-01 7396 1920-06-01 7564 1920-09-01 7595 1920-11-01 7631 1920-12-01 7642 1921-02-01 7562 1921-04-01 7523 1921-06-01 7490 1921-09-01 7425 1921-12-01 7413 1922-03-01 7514 1922-05-01 7648 1922-06-01 7858 1922-09-01 7927 1922-12-01 8315 1923-04-01 8779 1923-06-01 9047