Quarter	US Dollars, sum over component sub-periods
2006-01-01	7039300000.000000
2006-04-01	7856800000.000000
2006-07-01	8871300000.000000
2006-10-01	8820500000.000000
2007-01-01	8753600000.000000
2007-04-01	9709000000.000000
2007-07-01	12042300000.000000
2007-10-01	12019600000.000000
2008-01-01	12207100000.000000
2008-04-01	14584000000.000000
2008-07-01	15679900000.000000
2008-10-01	12125200000.000000
2009-01-01	7955500000.000000
2009-04-01	8699944000.000000
2009-07-01	10073180000.000000
2009-10-01	10417510000.000000
2010-01-01	10561397640.000000
2010-04-01	13181124900.000000
2010-07-01	15235392540.000000
2010-10-01	15180848620.000000
2011-01-01	14623696720.000000
2011-04-01	17933635670.000000
2011-07-01	20493963990.000000
2011-10-01	17717481530.000000
2012-01-01	14604842990.000000
2012-04-01	16045013910.000000
2012-07-01	17675161010.000000
2012-10-01	16717724300.000002
2013-01-01	15455857020.000000
2013-04-01	19023650480.000000
2013-07-01	19242185820.000000
2013-10-01	17571299800.000000
2014-01-01	15863362140.000000
2014-04-01	16560882070.000000
2014-07-01	16684870910.000002
2014-10-01	13789850970.000000
2015-01-01	12927229460.000000
2015-04-01	14948834850.000000
2015-07-01	16152953810.000000
2015-10-01	13565211770.000000
2016-01-01	12259487350.000000
2016-04-01	13736192780.000000
2016-07-01	14025349710.000000
2016-10-01	13483475840.000000
2017-01-01	13356287530.000000
2017-04-01	16216133730.000000
2017-07-01	17493367870.000000
2017-10-01	16927490600.000002
2018-01-01	16175549060.000000
2018-04-01	17207501100.000000