Quarter	Billions of US Dollars
1999-01-01	1508.699
1999-04-01	1457.219
1999-07-01	1487.771
1999-10-01	1382.766
2000-01-01	1327.090
2000-04-01	1343.656
2000-07-01	1226.681
2000-10-01	1305.631
2001-01-01	1269.544
2001-04-01	1229.439
2001-07-01	1324.059
2001-10-01	1298.985
2002-01-01	1302.077
2002-04-01	1503.206
2002-07-01	1512.852
2002-10-01	1585.952
2003-01-01	1689.841
2003-04-01	1796.543
2003-07-01	1840.938
2003-10-01	1930.703
2004-01-01	1945.424
2004-04-01	1966.678
2004-07-01	2030.628
2004-10-01	2175.456
2005-01-01	2148.197
2005-04-01	2081.139
2005-07-01	2051.121
2005-10-01	1974.126
2006-01-01	2050.211
2006-04-01	2172.888
2006-07-01	2195.283
2006-10-01	2241.144
2007-01-01	2290.831
2007-04-01	2307.419
2007-07-01	2431.141
2007-10-01	2495.104
2008-01-01	2767.570
2008-04-01	2707.541
2008-07-01	2470.436
2008-10-01	2451.347
2009-01-01	2456.485
2009-04-01	2630.072
2009-07-01	2812.932
2009-10-01	2731.926
2010-01-01	2615.222
2010-04-01	2381.342
2010-07-01	2692.425
2010-10-01	2560.305
2011-01-01	2748.773
2011-04-01	2839.441
2011-07-01	2524.221
2011-10-01	2379.358
2012-01-01	2672.539
2012-04-01	2495.251
2012-07-01	2654.064
2012-10-01	2781.441
2013-01-01	2728.403
2013-04-01	2869.559
2013-07-01	2933.803
2013-10-01	3067.089
2014-01-01	3219.653
2014-04-01	3316.020
2014-07-01	3043.767
2014-10-01	2973.764
2015-01-01	2771.471
2015-04-01	2773.286
2015-07-01	2818.816
2015-10-01	2737.919
2016-01-01	2958.014
2016-04-01	2902.536
2016-07-01	2881.094
2016-10-01	2670.219
2017-01-01	2696.430
2017-04-01	2920.076
2017-07-01	3020.756
2017-10-01	3050.248
2018-01-01	3199.081