Quarter	Billions of US Dollars
2008-01-01	3404.636
2008-04-01	3553.044
2008-07-01	3433.465
2008-10-01	3228.723
2009-01-01	3186.792
2009-04-01	3535.737
2009-07-01	3832.891
2009-10-01	4033.971
2010-01-01	4299.335
2010-04-01	4398.769
2010-07-01	4833.526
2010-10-01	5098.363
2011-01-01	5377.925
2011-04-01	5706.518
2011-07-01	5555.593
2011-10-01	5754.652
2012-01-01	6055.190
2012-04-01	6075.094
2012-07-01	6427.673
2012-10-01	6728.638
2013-01-01	6929.634
2013-04-01	7101.537
2013-07-01	7406.022
2013-10-01	7624.661
2014-01-01	7722.318
2014-04-01	8051.298
2014-07-01	8031.790
2014-10-01	7913.509
2015-01-01	7922.550
2015-04-01	8193.429
2015-07-01	7985.868
2015-10-01	8108.338
2016-01-01	8537.640
2016-04-01	8745.144
2016-07-01	9118.958
2016-10-01	9035.676
2017-01-01	9602.305
2017-04-01	10017.101
2017-07-01	10559.827
2017-10-01	11093.859
2018-01-01	11718.243