Quarter	US Dollars, sum over component sub-periods
1999-01-01	1034424323258.2800
1999-04-01	1060438246377.7301
1999-07-01	1094337904342.9100
1999-10-01	1142952531950.1000
2000-01-01	1141971127381.8200
2000-04-01	1176818322848.4200
2000-07-01	1166528765217.8400
2000-10-01	1187141705047.0100
2001-01-01	1174345099073.4302
2001-04-01	1124650642269.7600
2001-07-01	1079437133930.2802
2001-10-01	1063724741561.2601
2002-01-01	1046443383790.1000
2002-04-01	1126300787146.5698
2002-07-01	1170866738784.9400
2002-10-01	1192067544439.2900
2003-01-01	1220759274821.5698
2003-04-01	1265240158845.3800
2003-07-01	1277679963422.3900
2003-10-01	1383197596467.4000
2004-01-01	1460571593494.8400
2004-04-01	1502223465771.6500
2004-07-01	1518121387792.4300
2004-10-01	1640367581574.5398
2005-01-01	1661612910889.8100
2005-04-01	1725329425285.7300
2005-07-01	1716248230883.8901
2005-10-01	1771295185842.8000
2006-01-01	1850529080599.3800
2006-04-01	1989512585567.8398
2006-07-01	1991465706749.8298
2006-10-01	2101559634790.8699
2007-01-01	2135475855937.8700
2007-04-01	2280297523235.0100
2007-07-01	2333069288488.2397
2007-10-01	2472034181061.5200
2008-01-01	2490432285948.9697
2008-04-01	2609654647917.5200
2008-07-01	2490870262307.3900
2008-10-01	2110598588167.1902
2009-01-01	1779690777866.8800
2009-04-01	1827196174013.2800
2009-07-01	1941126861075.0300
2009-10-01	2077361938744.9202
2010-01-01	2036009383392.9000
2010-04-01	2090349268313.1700
2010-07-01	2150035423052.9500
2010-10-01	2302254348504.2700
2011-01-01	2341854409699.6797
2011-04-01	2518758316830.8400
2011-07-01	2500469351955.0000
2011-10-01	2446005353423.5103
2012-01-01	2416365301064.5500
2012-04-01	2437573713235.9400
2012-07-01	2379419191888.4000
2012-10-01	2425138226558.7800
2013-01-01	2383912127315.4404
2013-04-01	2483061339964.6597
2013-07-01	2454293829438.0900
2013-10-01	2532556123358.8003
2014-01-01	2496350946983.6900
2014-04-01	2622700454810.1600
2014-07-01	2558235295842.0400
2014-10-01	2526327605614.7900
2015-01-01	2298484690542.9400
2015-04-01	2394260232698.6997
2015-07-01	2335005687919.3300
2015-10-01	2325902972736.3496
2016-01-01	2215854547153.6700
2016-04-01	2385736302821.5300
2016-07-01	2334914264301.3000
2016-10-01	2384696585089.1000
2017-01-01	2354766955315.3900
2017-04-01	2479310803959.7600
2017-07-01	2561326544794.9700
2017-10-01	2657910132427.0700
2018-01-01	2669781666513.1196