Quarter Billions of US Dollars 1998-07-01 0.010390 1998-10-01 0.014668 1999-01-01 0.007180 1999-04-01 0.006759 1999-10-01 0.004688 2000-10-01 -0.001139 2001-04-01 -0.001116 2001-07-01 -0.014216 2002-01-01 -0.005603 2002-04-01 -0.008565 2004-10-01 -0.007449