Quarter	US Dollars, sum over component sub-periods
2000-01-01	2684784949.000000
2000-04-01	2760295281.000000
2000-07-01	2760214584.000000
2000-10-01	2837204298.000000
2001-01-01	3043958083.000000
2001-04-01	3208203896.000000
2001-07-01	3029027796.000000
2001-10-01	2948497576.000000
2002-01-01	2586502070.000000
2002-04-01	3163396507.000000
2002-07-01	3087956885.000000
2002-10-01	3186595964.000000
2003-01-01	3190771097.000000
2003-04-01	3133288081.000000
2003-07-01	3421050741.000000
2003-10-01	3450317473.000000
2004-01-01	3415549754.000000
2004-04-01	3851135804.000000
2004-07-01	4028157482.000000
2004-10-01	4543622795.000000
2005-01-01	4317771956.000000
2005-04-01	5139544447.000000
2005-07-01	5297157690.000000
2005-10-01	5339892246.000000
2006-01-01	5369062627.000000
2006-04-01	6058698965.000000
2006-07-01	6513449218.000000
2006-10-01	6868805295.000000
2007-01-01	7007087920.000000
2007-04-01	7487201239.000000
2007-07-01	7987313343.000000
2007-10-01	8634684186.000000
2008-01-01	8361962823.000000
2008-04-01	9518005784.000000
2008-07-01	10107060500.000000
2008-10-01	9524412157.000000
2009-01-01	7599808017.000000
2009-04-01	7257239655.000000
2009-07-01	8123618541.000000
2009-10-01	8447421571.000001
2010-01-01	8334924670.000000
2010-04-01	8941592274.000000
2010-07-01	10308760450.000000
2010-10-01	10820555420.000000
2011-01-01	11553286780.000000
2011-04-01	12968156330.000000
2011-07-01	13744392430.000000
2011-10-01	13859710040.000000
2012-01-01	13465694320.000000
2012-04-01	14429868360.000000
2012-07-01	14506696150.000000
2012-10-01	14246031420.000000
2013-01-01	13694190600.000000
2013-04-01	14099086110.000000
2013-07-01	14594748870.000000
2013-10-01	14715050240.000000
2014-01-01	14224028880.000000
2014-04-01	15173358960.000000
2014-07-01	16164400380.000000
2014-10-01	15977556320.000000
2015-01-01	13476344490.000000
2015-04-01	12583323580.000000
2015-07-01	13485944040.000000
2015-10-01	12505139960.000000
2016-01-01	10167398050.000000
2016-04-01	10546187050.000000
2016-07-01	11105582890.000000
2016-10-01	11419781450.000000
2017-01-01	10888510680.000000
2017-04-01	10980584680.000000
2017-07-01	11231389120.000000
2017-10-01	11146690950.000000
2018-01-01	11140751320.000000
2018-04-01	12590097180.000000