Quarter	US Dollars, sum over component sub-periods
1998-01-01	6495240000.00000
1998-04-01	6158053000.00000
1998-07-01	8833492205.00000
1998-10-01	5355515923.00000
1999-01-01	6604862870.00000
1999-04-01	7523743150.00000
1999-07-01	8298259984.00000
1999-10-01	9225761253.00000
2000-01-01	8395362819.00000
2000-04-01	8963013320.00000
2000-07-01	9253544196.00000
2000-10-01	9551893721.00000
2001-01-01	9070424810.00000
2001-04-01	9696480095.00000
2001-07-01	9623995837.00000
2001-10-01	10881348010.00000
2002-01-01	10431336900.00000
2002-04-01	12068110040.00000
2002-07-01	11824554100.00000
2002-10-01	12206311920.00000
2003-01-01	13414902320.00000
2003-04-01	12079695160.00000
2003-07-01	13755715540.00000
2003-10-01	16061583380.00000
2004-01-01	16071668760.00000
2004-04-01	16889175390.00000
2004-07-01	20198549390.00000
2004-10-01	19563376810.00000
2005-01-01	18708405970.00000
2005-04-01	19931860600.00000
2005-07-01	23515936250.00000
2005-10-01	21814478610.00000
2006-01-01	22143197940.00000
2006-04-01	23820731780.00000
2006-07-01	27832755640.00000
2006-10-01	27041493150.00000
2007-01-01	28270295720.00000
2007-04-01	30774687440.00000
2007-07-01	34664399180.00000
2007-10-01	36420551710.00000
2008-01-01	36874373970.00000
2008-04-01	38529558370.00000
2008-07-01	43199241550.00000
2008-10-01	40345487650.00000
2009-01-01	36267949030.00000
2009-04-01	35336242500.00000
2009-07-01	42952312250.00000
2009-10-01	44363300080.00000
2010-01-01	43120378690.00000
2010-04-01	46745016040.00000
2010-07-01	49781558750.00000
2010-10-01	53754541660.00000
2011-01-01	63624346210.00000
2011-04-01	56138120350.00000
2011-07-01	64673832670.00000
2011-10-01	63407719490.00000
2012-01-01	61768848020.00000
2012-04-01	68821819340.00000
2012-07-01	77633452270.00000
2012-10-01	73076356320.00000
2013-01-01	73760815350.00000
2013-04-01	78129393310.00000
2013-07-01	93386854300.00000
2013-10-01	85330475860.00000
2014-01-01	101409119400.00000
2014-04-01	101404746300.00000
2014-07-01	115731088400.00000
2014-10-01	114338172500.00000
2015-01-01	100280224700.00000
2015-04-01	109710782200.00000
2015-07-01	116175669300.00000
2015-10-01	109552667700.00000
2016-01-01	102396914700.00000
2016-04-01	102708335700.00000
2016-07-01	115183194900.00000
2016-10-01	121261296000.00000
2017-01-01	113791650600.00000
2017-04-01	120841088300.00000
2017-07-01	118887375400.00000
2017-10-01	118350294500.00000
2018-01-01	130104595000.00000
2018-04-01	132681969699.99998