Quarter	US Dollars, sum over component sub-periods
1994-01-01	2760540000.0000000
1994-04-01	4438860000.0000000
1994-07-01	4068520000.0000000
1994-10-01	4166770000.0000005
1995-01-01	3366000000.0000000
1995-04-01	5051000000.0000000
1995-07-01	6291000000.0000000
1995-10-01	5497000000.0000000
1996-01-01	4259149999.9999995
1996-04-01	4761950000.0000000
1996-07-01	5189950000.0000000
1996-10-01	4453550000.0000000
1997-01-01	4161439999.9999995
1997-04-01	4764070000.0000000
1997-07-01	5892140000.0000000
1997-10-01	5206890000.0000000
1998-01-01	4032000000.0000000
1998-04-01	4700510000.0000000
1998-07-01	4458530000.0000000
1998-10-01	3319290000.0000000
1999-01-01	2719430000.0000000
1999-04-01	3277490000.0000000
1999-07-01	3831380000.0000000
1999-10-01	3691120000.0000000
2000-01-01	3236480000.0000000
2000-04-01	3998690000.0000000
2000-07-01	5012900000.0000000
2000-10-01	4091930000.0000000
2001-01-01	4042160000.0000000
2001-04-01	5281810000.0000000
2001-07-01	6448760000.0000000
2001-10-01	5022670000.0000000
2002-01-01	4812070000.0000000
2002-04-01	5793440000.0000000
2002-07-01	7036410000.0000000
2002-10-01	6317370000.0000000
2003-01-01	5206280000.0000000
2003-04-01	6241870000.0000000
2003-07-01	8401040000.0000010
2003-10-01	7738380000.0000000
2004-01-01	6593870000.0000000
2004-04-01	8211900000.0000000
2004-07-01	10437890000.0000000
2004-10-01	9009460000.0000000
2005-01-01	7575350000.0000000
2005-04-01	9570200000.0000000
2005-07-01	12122510000.0000000
2005-10-01	11202810000.0000000
2006-01-01	8680890000.0000000
2006-04-01	11086580000.0000000
2006-07-01	13521550000.0000000
2006-10-01	12984080000.0000000
2007-01-01	11160130000.0000000
2007-04-01	14288800000.0000000
2007-07-01	17442390000.0000000
2007-10-01	17686600000.0000000
2008-01-01	15354160000.0000000
2008-04-01	20201280000.0000000
2008-07-01	23616870000.0000000
2008-10-01	18383170000.0000000
2009-01-01	12516300000.0000000
2009-04-01	15295380000.0000000
2009-07-01	18218420000.0000000
2009-10-01	17366650000.0000000
2010-01-01	14316410000.0000000
2010-04-01	17671890000.0000000
2010-07-01	22065270000.0000000
2010-10-01	21225140000.0000000
2011-01-01	17237540000.0000000
2011-04-01	22496330000.0000000
2011-07-01	27208840000.0000000
2011-10-01	24552630000.0000000
2012-01-01	21430640000.0000000
2012-04-01	25917890000.0000000
2012-07-01	31721440000.0000000
2012-10-01	29856560000.0000000
2013-01-01	25701070000.0000000
2013-04-01	31547220000.0000000
2013-07-01	38188040000.0000000
2013-10-01	32945530000.0000000
2014-01-01	26171740000.0000000
2014-04-01	31712540000.0000000
2014-07-01	36429010000.0000000
2014-10-01	26708900000.0000000
2015-01-01	20101950000.0000000
2015-04-01	22625570000.0000000
2015-07-01	25384890000.0000000
2015-10-01	20655400000.0000000
2016-01-01	15252010000.0000000
2016-04-01	18635680000.0000000
2016-07-01	21033400000.0000000
2016-10-01	19646000000.0000000
2017-01-01	17529770000.0000000
2017-04-01	22374510000.0000000
2017-07-01	25132240000.0000000
2017-10-01	23787770000.0000000
2018-01-01	20714730000.0000000
2018-04-01	24514330000.0000000