Quarter	Billions of US Dollars
1999-01-01	388.031
1999-04-01	380.330
1999-07-01	403.872
1999-10-01	388.566
2000-01-01	381.140
2000-04-01	391.407
2000-07-01	373.255
2000-10-01	390.992
2001-01-01	378.301
2001-04-01	366.528
2001-07-01	399.778
2001-10-01	387.008
2002-01-01	388.937
2002-04-01	448.635
2002-07-01	450.575
2002-10-01	476.692
2003-01-01	503.608
2003-04-01	538.187
2003-07-01	541.595
2003-10-01	587.978
2004-01-01	581.232
2004-04-01	591.466
2004-07-01	612.358
2004-10-01	658.143
2005-01-01	656.737
2005-04-01	643.914
2005-07-01	649.636
2005-10-01	621.726
2006-01-01	652.525
2006-04-01	705.933
2006-07-01	706.712
2006-10-01	726.125
2007-01-01	749.296
2007-04-01	788.766
2007-07-01	850.010
2007-10-01	861.727
2008-01-01	943.144
2008-04-01	941.327
2008-07-01	866.834
2008-10-01	872.057
2009-01-01	840.908
2009-04-01	898.276
2009-07-01	932.261
2009-10-01	947.714
2010-01-01	899.214
2010-04-01	846.863
2010-07-01	948.967
2010-10-01	928.675
2011-01-01	982.473
2011-04-01	1016.858
2011-07-01	970.708
2011-10-01	937.733
2012-01-01	976.967
2012-04-01	943.378
2012-07-01	970.392
2012-10-01	992.308
2013-01-01	966.430
2013-04-01	982.120
2013-07-01	1019.846
2013-10-01	1052.466
2014-01-01	1057.496
2014-04-01	1069.745
2014-07-01	989.723
2014-10-01	965.826
2015-01-01	874.196
2015-04-01	895.740
2015-07-01	908.817
2015-10-01	888.145
2016-01-01	944.412
2016-04-01	929.962
2016-07-01	937.022
2016-10-01	889.838
2017-01-01	898.601
2017-04-01	958.090
2017-07-01	994.504
2017-10-01	1011.245
2018-01-01	1037.411