Quarter Billions of US Dollars 1972-04-01 0.02500 1973-04-01 0.02000 1974-04-01 0.06130 1975-04-01 0.03500 1976-04-01 0.10930 1976-10-01 0.03770 1977-04-01 0.06750 1977-07-01 0.06030 1977-10-01 0.08800 1978-01-01 0.13970 1978-04-01 0.23310 1978-07-01 0.05070 1978-10-01 0.29230 1979-01-01 0.07380 1979-04-01 0.11900 1979-07-01 0.02500 1985-04-01 0.50000 1986-04-01 0.09070 1988-01-01 0.15220 1988-04-01 0.12890 1988-07-01 0.14590 1988-10-01 0.07870 1989-04-01 0.08110 1989-07-01 0.07940 2012-10-01 0.27500 2013-10-01 0.05000 2014-04-01 0.59298