Quarter	Millions of US Dollars
2005-01-01	46912
2005-04-01	49741
2005-07-01	51607
2005-10-01	51648
2006-01-01	54128
2006-04-01	56466
2006-07-01	57306
2006-10-01	60039
2007-01-01	63729
2007-04-01	66783
2007-07-01	71235
2007-10-01	71556
2008-01-01	77120
2008-04-01	78742
2008-07-01	75453
2008-10-01	79248
2009-01-01	77362
2009-04-01	84132
2009-07-01	90781
2009-10-01	93535
2010-01-01	102842
2010-04-01	105821
2010-07-01	113669
2010-10-01	116707
2011-01-01	127180
2011-04-01	129014
2011-07-01	122613
2011-10-01	128083
2012-01-01	137611
2012-04-01	135903
2012-07-01	144015
2012-10-01	149827
2013-01-01	150574
2013-04-01	151557
2013-07-01	150264
2013-10-01	154166
2014-01-01	162299
2014-04-01	167481
2014-07-01	164344
2014-10-01	158838
2015-01-01	154227
2015-04-01	159731
2015-07-01	135887
2015-10-01	140691
2016-01-01	161526
2016-04-01	163563
2016-07-01	154944
2016-10-01	143951
2017-01-01	150225
2017-04-01	159246
2017-07-01	162865
2017-10-01	169868
2018-01-01	182124