Quarter Billions of US Dollars 1987-01-01 0.09429 1987-04-01 0.09401 1987-07-01 0.09416 1987-10-01 0.10049 1988-01-01 0.09987 1988-04-01 0.09776 1988-07-01 0.09716 1988-10-01 0.09973 1989-01-01 0.09786 1989-04-01 0.09470 1989-07-01 0.09589 1989-10-01 0.09486 1990-01-01 0.09181 1990-04-01 0.09270 1990-07-01 0.09628 1990-10-01 0.03720 1991-01-01 0.03546 1991-04-01 0.03626 1991-07-01 0.03764 1991-10-01 0.03994 1992-01-01 0.03754 1992-04-01 0.03984 1992-07-01 0.04195 1992-10-01 0.04008 1993-01-01 0.04297 1993-04-01 0.04684 1993-07-01 0.04755 1993-10-01 0.04470 1994-01-01 0.04847 1994-04-01 0.05048 1994-07-01 0.05079 1994-10-01 0.05013 1995-01-01 0.05596