Quarter	Not Specified
1919-01-01	107.
1919-04-01	165.
1919-07-01	192.
1919-10-01	238.
1920-01-01	300.
1920-04-01	315.
1920-07-01	232.
1920-10-01	177.2
1921-01-01	142.
1921-04-01	152.2
1921-07-01	110.1
1921-10-01	184.2
1922-01-01	165.8
1922-04-01	187.6
1922-07-01	138.8
1922-10-01	253.8
1923-01-01	257.1
1923-04-01	291.9
1923-07-01	184.5
1923-10-01	282.8
1924-01-01	194.1
1924-04-01	220.2
1924-07-01	170.3
1924-10-01	318.9
1925-01-01	254.2
1925-04-01	252.8
1925-07-01	207.6
1925-10-01	341.2
1926-01-01	302.8
1926-04-01	317.
1926-07-01	241.9
1926-10-01	358.3
1927-01-01	324.2
1927-04-01	285.9
1927-07-01	251.8
1927-10-01	366.7
1928-01-01	311.2
1928-04-01	309.9
1928-07-01	252.1
1928-10-01	356.2
1929-01-01	314.
1929-04-01	342.6
1929-07-01	273.9
1929-10-01	322.6
1930-01-01	277.6
1930-04-01	255.0
1930-07-01	196.6
1930-10-01	231.1
1931-01-01	209.3
1931-04-01	192.8
1931-07-01	120.5
1931-10-01	164.7
1932-01-01	128.2
1932-04-01	120.3
1932-07-01	85.6
1932-10-01	112.9
1933-01-01	124.6
1933-04-01	140.3
1933-07-01	138.3
1933-10-01	177.4
1934-01-01	184.4
1934-04-01	190.8
1934-07-01	154.4
1934-10-01	207.6
1935-01-01	226.5
1935-04-01	211.1
1935-07-01	200.3
1935-10-01	266.2
1936-01-01	274.8
1936-04-01	290.5
1936-07-01	258.6
1936-10-01	325.5
1937-01-01	353.
1937-04-01	368.6
1937-07-01	282.3
1937-10-01	281.5
1938-01-01	286.8
1938-04-01	234.9
1938-07-01	207.5
1938-10-01	281.
1939-01-01	288.7
1939-04-01	272.3
1939-07-01	229.7
1939-10-01	333.5
1940-01-01	357.4
1940-04-01	404.5
1940-07-01	271.
1940-10-01	352.
1941-01-01	424.7
1941-04-01	469.4
1941-07-01	489.
1941-10-01	350.2
1942-01-01	306.8