Quarter	Billions of US Dollars
1999-01-01	554.813
1999-04-01	540.120
1999-07-01	560.635
1999-10-01	554.693
2000-01-01	537.186
2000-04-01	528.712
2000-07-01	492.030
2000-10-01	519.473
2001-01-01	478.101
2001-04-01	465.227
2001-07-01	485.066
2001-10-01	505.155
2002-01-01	508.267
2002-04-01	580.386
2002-07-01	582.413
2002-10-01	635.601
2003-01-01	653.264
2003-04-01	696.307
2003-07-01	735.709
2003-10-01	793.798
2004-01-01	759.060
2004-04-01	767.095
2004-07-01	798.403
2004-10-01	902.684
2005-01-01	852.293
2005-04-01	794.566
2005-07-01	809.599
2005-10-01	810.236
2006-01-01	823.851
2006-04-01	898.761
2006-07-01	904.737
2006-10-01	990.228
2007-01-01	990.881
2007-04-01	1046.585
2007-07-01	1132.960
2007-10-01	1195.772
2008-01-01	1318.456
2008-04-01	1341.806
2008-07-01	1225.028
2008-10-01	1118.662
2009-01-01	1055.670
2009-04-01	1154.029
2009-07-01	1284.501
2009-10-01	1286.557
2010-01-01	1260.759
2010-04-01	1179.591
2010-07-01	1375.765
2010-10-01	1376.606
2011-01-01	1479.110
2011-04-01	1487.615
2011-07-01	1402.213
2011-10-01	1423.175
2012-01-01	1503.108
2012-04-01	1429.808
2012-07-01	1551.469
2012-10-01	1530.273
2013-01-01	1574.640
2013-04-01	1547.747
2013-07-01	1614.164
2013-10-01	1618.699
2014-01-01	1648.796
2014-04-01	1608.604
2014-07-01	1494.830
2014-10-01	1443.833
2015-01-01	1312.747
2015-04-01	1384.755
2015-07-01	1372.111
2015-10-01	1397.779
2016-01-01	1442.564
2016-04-01	1397.645
2016-07-01	1389.340
2016-10-01	1337.738
2017-01-01	1392.051
2017-04-01	1484.282
2017-07-01	1539.652
2017-10-01	1560.499
2018-01-01	1570.618