Quarter	Billions of US Dollars
1989-10-01	114.925
1990-01-01	118.765
1990-04-01	125.384
1990-07-01	136.822
1990-10-01	137.192
1991-01-01	121.734
1991-04-01	113.931
1991-07-01	122.616
1991-10-01	131.119
1992-01-01	118.607
1992-04-01	129.025
1992-07-01	144.556
1992-10-01	122.069
1993-01-01	118.884
1993-04-01	117.742
1993-07-01	125.384
1993-10-01	120.130
1994-01-01	126.051
1994-04-01	132.192
1994-07-01	138.205
1994-10-01	135.518
1995-01-01	156.028
1995-04-01	154.415
1995-07-01	155.387
1995-10-01	154.482
1996-01-01	150.420
1996-04-01	143.002
1996-07-01	142.383
1996-10-01	132.858
1997-01-01	123.586
1997-04-01	122.936
1997-07-01	123.517
1997-10-01	123.234
1998-01-01	117.629
1998-04-01	117.457
1998-07-01	129.106
1998-10-01	130.131
1999-01-01	120.340
1999-04-01	115.225
1999-07-01	119.503
1999-10-01	112.225
2000-01-01	107.555
2000-04-01	110.405
2000-07-01	103.343
2000-10-01	109.707
2001-01-01	103.600
2001-04-01	99.878
2001-07-01	111.424
2001-10-01	107.007
2002-01-01	106.771
2002-04-01	122.057
2002-07-01	121.388
2002-10-01	129.977
2003-01-01	133.879
2003-04-01	133.435
2003-07-01	137.859
2003-10-01	146.842
2004-01-01	143.143
2004-04-01	145.745
2004-07-01	145.065
2004-10-01	162.029
2005-01-01	151.974
2005-04-01	141.144
2005-07-01	139.912
2005-10-01	137.294
2006-01-01	137.772
2006-04-01	146.085
2006-07-01	143.609
2006-10-01	147.627
2007-01-01	147.704
2007-04-01	147.039
2007-07-01	154.326
2007-10-01	160.583
2008-01-01	180.777
2008-04-01	176.454
2008-07-01	162.721
2008-10-01	168.660
2009-01-01	156.349
2009-04-01	164.879
2009-07-01	173.224
2009-10-01	172.968
2010-01-01	166.665
2010-04-01	163.400
2010-07-01	181.747
2010-10-01	188.273
2011-01-01	190.563
2011-04-01	209.057
2011-07-01	193.415
2011-10-01	185.244
2012-01-01	192.988
2012-04-01	171.986
2012-07-01	182.373
2012-10-01	189.110
2013-01-01	181.457
2013-04-01	186.166
2013-07-01	199.291
2013-10-01	204.930
2014-01-01	210.249
2014-04-01	212.349
2014-07-01	198.764
2014-10-01	194.919
2015-01-01	203.156