Quarter	Billions of US Dollars
1998-10-01	4282.362
1999-01-01	3951.957
1999-04-01	3837.464
1999-07-01	3998.055
1999-10-01	3841.711
2000-01-01	3668.613
2000-04-01	3718.207
2000-07-01	3433.225
2000-10-01	3707.650
2001-01-01	3535.653
2001-04-01	3402.347
2001-07-01	3701.308
2001-10-01	3611.475
2002-01-01	3583.706
2002-04-01	4131.790
2002-07-01	4151.772
2002-10-01	4426.276
2003-01-01	4663.418
2003-04-01	4949.238
2003-07-01	5036.778
2003-10-01	5478.683
2004-01-01	5341.702
2004-04-01	5293.486
2004-07-01	5429.315
2004-10-01	5980.632
2005-01-01	5699.046
2005-04-01	5379.074
2005-07-01	5385.255
2005-10-01	5251.476
2006-01-01	5419.032
2006-04-01	5717.527
2006-07-01	5754.408
2006-10-01	5963.287
2007-01-01	6024.397
2007-04-01	6096.812
2007-07-01	6395.843
2007-10-01	6701.201
2008-01-01	7238.455
2008-04-01	7236.315
2008-07-01	6606.436
2008-10-01	6569.191
2009-01-01	6317.892
2009-04-01	6768.690
2009-07-01	7020.713
2009-10-01	6919.716
2010-01-01	6514.348
2010-04-01	6044.523
2010-07-01	6784.898
2010-10-01	6845.012
2011-01-01	7162.871
2011-04-01	7341.821
2011-07-01	7032.110
2011-10-01	6769.823
2012-01-01	7052.590
2012-04-01	6788.485
2012-07-01	6983.380
2012-10-01	7142.194
2013-01-01	6944.112
2013-04-01	7103.393
2013-07-01	7290.278
2013-10-01	7492.401
2014-01-01	7525.727
2014-04-01	7527.848
2014-07-01	6958.932
2014-10-01	6726.593
2015-01-01	6076.595
2015-04-01	6229.918
2015-07-01	6268.764
2015-10-01	6090.690
2016-01-01	6477.973
2016-04-01	6359.871
2016-07-01	6432.423
2016-10-01	6001.163
2017-01-01	6107.716
2017-04-01	6541.566
2017-07-01	6813.889
2017-10-01	6942.541
2018-01-01	7088.861