Quarter	US Dollars, sum over component sub-periods
1999-01-01	655667632685.0000
1999-04-01	673896789848.8120
1999-07-01	694665540426.7620
1999-10-01	743700921018.5980
2000-01-01	757354875261.1710
2000-04-01	774935134791.4560
2000-07-01	777258565033.4490
2000-10-01	816586434131.7570
2001-01-01	785042490714.9420
2001-04-01	756381551163.2219
2001-07-01	716285073366.6280
2001-10-01	720869415890.5920
2002-01-01	684361675594.0890
2002-04-01	756871536973.0650
2002-07-01	771708909708.8931
2002-10-01	814004719966.1489
2003-01-01	822001219997.8779
2003-04-01	852752531402.5650
2003-07-01	835527484431.1450
2003-10-01	923219081166.7290
2004-01-01	942879034416.3619
2004-04-01	991121054732.2440
2004-07-01	1006165161087.4099
2004-10-01	1107126020779.5700
2005-01-01	1071627438823.0599
2005-04-01	1136323501700.1200
2005-07-01	1132984512529.9202
2005-10-01	1199300254886.7302
2006-01-01	1218415331678.1099
2006-04-01	1304841942972.3098
2006-07-01	1292708690471.7000
2006-10-01	1325228132673.7002
2007-01-01	1314703339134.7300
2007-04-01	1382043153851.7200
2007-07-01	1408064656613.2500
2007-10-01	1524008592619.9200
2008-01-01	1540968892152.9600
2008-04-01	1661374207462.7300
2008-07-01	1646635606275.8098
2008-10-01	1372388071924.9500
2009-01-01	1085336046334.6699
2009-04-01	1091440383323.5801
2009-07-01	1201151094073.3400
2009-10-01	1305958318419.4600
2010-01-01	1288504651785.7002
2010-04-01	1360400621513.9200
2010-07-01	1413066033414.4400
2010-10-01	1505448487822.7100
2011-01-01	1556448776981.1100
2011-04-01	1671979001838.2700
2011-07-01	1671922771038.5400
2011-10-01	1649668591514.2400
2012-01-01	1628216332520.7700
2012-04-01	1632023137545.9000
2012-07-01	1589412020471.4300
2012-10-01	1617621085982.8000
2013-01-01	1566693127772.1401
2013-04-01	1600716407038.8200
2013-07-01	1622298131295.7600
2013-10-01	1664657722630.8600
2014-01-01	1638414012664.5600
2014-04-01	1681463409611.5900
2014-07-01	1666745663830.5000
2014-10-01	1627122609514.5898
2015-01-01	1473089425648.0498
2015-04-01	1495711318175.3500
2015-07-01	1484471613922.0700
2015-10-01	1463328723321.4400
2016-01-01	1383683741890.5498
2016-04-01	1451028834882.8700
2016-07-01	1454886043404.5300
2016-10-01	1469590022171.0800
2017-01-01	1481100963916.1300
2017-04-01	1534944567765.6100
2017-07-01	1565815075797.3000
2017-10-01	1656071698325.4400
2018-01-01	1675298711880.9200