Quarter Billions of US Dollars 1989-01-01 0.025000 1989-04-01 0.035000 1989-07-01 0.045000 1989-10-01 0.055000 1990-01-01 0.020000 1995-10-01 0.033350 1996-01-01 0.028700 1996-04-01 0.050000 1996-07-01 0.040000 1998-01-01 0.047224 1998-04-01 0.047224