Quarterly US Dollars, sum over component sub-periods
1998-01-01 24412873270.00000
1998-04-01 28688246340.00000
1998-07-01 27888114540.00000
1998-10-01 37082169430.00000
1999-01-01 27280139070.00000
1999-04-01 34718791810.00000
1999-07-01 34575586280.00000
1999-10-01 39831299850.00000
2000-01-01 38804932270.00000
2000-04-01 46355308230.00000
2000-07-01 51334431520.00000
2000-10-01 51647752090.00000
2001-01-01 46216332150.00000
2001-04-01 52139071820.00000
2001-07-01 54342270800.00000
2001-10-01 52003866710.00000
2002-01-01 48164221670.00000
2002-04-01 59631918100.00000
2002-07-01 70807282400.00000
2002-10-01 70485904520.00000
2003-01-01 75567295190.00000
2003-04-01 84901274660.00000
2003-07-01 97427289400.00000
2003-10-01 98929369070.00000
2004-01-01 108031840600.00000
2004-04-01 121349216100.00000
2004-07-01 126256645600.00000
2004-10-01 127822079000.00000
2005-01-01 119345036300.00000
2005-04-01 139958531000.00000
2005-07-01 149130845300.00000
2005-10-01 156307113800.00000
2006-01-01 150483953000.00000
2006-04-01 167210361400.00000
2006-07-01 184216274300.00000
2006-10-01 180063696000.00000
2007-01-01 176748279200.00000
2007-04-01 196176355900.00000
2007-07-01 222510200500.00000
2007-10-01 224455997500.00000
2008-01-01 230132626500.00000
2008-04-01 265686762999.99997
2008-07-01 284615621100.00000
2008-10-01 209652577700.00000
2009-01-01 160325772100.00000
2009-04-01 212387204100.00000
2009-07-01 251951651900.00000
2009-10-01 258949327600.00000
2010-01-01 268785464800.00003
2010-04-01 307309129800.00000
2010-07-01 324279493800.00000
2010-10-01 339612203500.00000
2011-01-01 361165852600.00000
2011-04-01 387457971400.00000
2011-07-01 412683305900.00000
2011-10-01 417797560900.00000
2012-01-01 392707186100.00000
2012-04-01 417657517100.00000
2012-07-01 421555561800.00000
2012-10-01 430026394700.00000
2013-01-01 426987194100.00000
2013-04-01 438852240600.00000
2013-07-01 459399743000.00000
2013-10-01 464368459600.00000
2014-01-01 438506904300.00000
2014-04-01 448271206000.00000
2014-07-01 466694691600.00000
2014-10-01 455246855300.00000
2015-01-01 364941223200.00000
2015-04-01 390099694800.00000
2015-07-01 400103673200.00000
2015-10-01 411417752900.00000
2016-01-01 321140128500.00000
2016-04-01 368833503400.00000
2016-07-01 389585613200.00000
2016-10-01 421076394500.00000
2017-01-01 392705729900.00000
2017-04-01 419850768500.00000
2017-07-01 447977397500.00000
2017-10-01 479778260100.00000
2018-01-01 477148836600.00000
2018-04-01 504096701700.00000