Month	Millions Of Dollars: 
1917-06-01	1633
1917-09-01	1809
1917-11-01	2419
1917-12-01	1957
1918-03-01	2026
1918-05-01	2164
1918-06-01	2129
1918-08-01	2062
1918-11-01	2097
1918-12-01	2041
1919-03-01	2006
1919-05-01	2131
1919-06-01	2204
1919-09-01	2234
1919-11-01	2131
1919-12-01	2159
1920-02-01	2098
1920-05-01	2110
1920-06-01	2153
1920-09-01	2103
1920-11-01	2069
1920-12-01	2059
1921-02-01	2018
1921-04-01	2069
1921-06-01	2047
1921-09-01	1847
1921-12-01	2001
1922-03-01	1988
1922-05-01	1937
1922-06-01	2067
1922-09-01	2023
1922-12-01	2126
1923-04-01	1947
1923-06-01	1810