Quarter	Millions Of Dollars
1915-01-01	127.000
1915-04-01	138.000
1915-07-01	161.000
1915-10-01	190.000
1916-01-01	229.000
1916-04-01	246.000
1916-07-01	270.000
1916-10-01	307.000
1917-01-01	385.000
1917-04-01	412.000
1917-07-01	460.000
1917-10-01	479.000
1918-01-01	554.000
1918-04-01	671.000
1918-07-01	684.000
1918-10-01	557.000
1919-01-01	484.000
1919-04-01	429.000
1919-07-01	566.000
1919-10-01	745.000
1920-01-01	871.000
1920-04-01	890.000
1920-07-01	777.000
1920-10-01	627.000
1921-01-01	443.000
1921-04-01	351.000
1921-07-01	299.000
1921-10-01	274.000
1922-01-01	310.000
1922-04-01	344.000
1922-07-01	407.000
1922-10-01	481.000
1923-01-01	495.000
1923-04-01	556.000
1923-07-01	524.000
1923-10-01	475.000
1924-01-01	478.000
1924-04-01	447.000
1924-07-01	388.000
1924-10-01	418.000
1925-01-01	471.000
1925-04-01	477.000
1925-07-01	484.000
1925-10-01	537.000
1926-01-01	581.000
1926-04-01	593.000
1926-07-01	575.000
1926-10-01	601.000
1927-01-01	561.000
1927-04-01	535.000
1927-07-01	507.000
1927-10-01	505.000
1928-01-01	524.000
1928-04-01	557.000
1928-07-01	601.000
1928-10-01	624.000
1929-01-01	659.000
1929-04-01	713.000
1929-07-01	682.000
1929-10-01	685.000
1930-01-01	600.000
1930-04-01	500.000
1930-07-01	435.000
1930-10-01	373.000
1931-01-01	312.000
1931-04-01	292.000
1931-07-01	238.000
1931-10-01	212.000
1932-01-01	184.000
1932-04-01	146.000
1932-07-01	120.000
1932-10-01	124.000
1933-01-01	117.000
1933-04-01	145.000
1933-07-01	223.000
1933-10-01	232.000
1934-01-01	224.000
1934-04-01	254.000
1934-07-01	234.000
1934-10-01	238.000
1935-01-01	254.000
1935-04-01	277.000
1935-07-01	300.000
1935-10-01	326.000
1936-01-01	336.000
1936-04-01	378.000
1936-07-01	390.000
1936-10-01	441.000
1937-01-01	502.000
1937-04-01	553.000
1937-07-01	568.000
1937-10-01	537.000
1938-01-01	392.000
1938-04-01	330.000
1938-07-01	326.000
1938-10-01	345.000
1939-01-01	344.000
1939-04-01	376.000
1939-07-01	387.000
1939-10-01	465.000
1940-01-01	484.000
1940-04-01	511.000
1940-07-01	581.000
1940-10-01	727.000