Quarter	US Dollars, sum over component sub-periods
1993-01-01	2839166006.6624600
1993-04-01	3444553739.6936603
1993-07-01	3174625501.8115597
1993-10-01	3893163941.5692096
1994-01-01	2975305955.5948200
1994-04-01	3667412517.5301600
1994-07-01	3816518478.7344604
1994-10-01	4406371772.9438400
1995-01-01	4544417263.1691800
1995-04-01	5357734122.5316910
1995-07-01	4921025408.6362200
1995-10-01	6018642514.7739000
1996-01-01	5160616924.6564490
1996-04-01	5558917126.6981200
1996-07-01	5699044021.6283090
1996-10-01	6410088542.4037490
1997-01-01	5456834476.0887800
1997-04-01	5639332910.4745300
1997-07-01	5102119135.0262900
1997-10-01	6047726865.3520700
1998-01-01	5338230823.7283190
1998-04-01	5682415208.4092010
1998-07-01	5539351537.7001100
1998-10-01	6258008632.1371400
1999-01-01	5069273264.2576000
1999-04-01	5480011198.2798600
1999-07-01	5332286177.8972000
1999-10-01	6592976725.1939600
2000-01-01	5941368051.7409600
2000-04-01	6290356635.5268800
2000-07-01	6190614003.6375600
2000-10-01	7096459505.8596400
2001-01-01	7022689128.0172300
2001-04-01	7138924330.6754400
2001-07-01	6822726808.5977600
2001-10-01	7808276057.6225500
2002-01-01	6897644016.1743910
2002-04-01	7912308650.0938800
2002-07-01	8193645314.7655910
2002-10-01	9343559728.1492390
2003-01-01	9032473775.8825110
2003-04-01	10347203803.8351000
2003-07-01	9931988194.0623700
2003-10-01	11977771302.4348000
2004-01-01	11391166472.1804000
2004-04-01	15134071509.1673980
2004-07-01	14731667106.0726000
2004-10-01	17362698048.1217000
2005-01-01	16117343731.6482000
2005-04-01	17901627343.3487970
2005-07-01	17476519838.8364000
2005-10-01	19208034709.5010000
2006-01-01	18409217628.4199030
2006-04-01	20972570169.5911030
2006-07-01	20814021288.1801030
2006-10-01	24577436767.6585000
2007-01-01	23613735292.0193020
2007-04-01	25319862476.1624030
2007-07-01	26101398509.8369980
2007-10-01	31570040684.0959000
2008-01-01	31681550503.1772000
2008-04-01	35019575530.7930000
2008-07-01	32556488062.5566980
2008-10-01	27116000436.8117000
2009-01-01	21109758479.0426030
2009-04-01	22713063638.4032020
2009-07-01	25393983020.1963000
2009-10-01	28496403635.6438980
2010-01-01	25272179618.3846000
2010-04-01	26593681701.4158970
2010-07-01	28922341666.4635000
2010-10-01	32287194782.4400020
2011-01-01	32085854737.2528000
2011-04-01	34861626033.7850950
2011-07-01	34100053074.3818000
2011-10-01	32747092408.0303000
2012-01-01	33003753964.1984000
2012-04-01	31833847066.7477000
2012-07-01	30291729431.4151000
2012-10-01	32913590656.2512970
2013-01-01	30336110817.5117000
2013-04-01	30923218372.6508980
2013-07-01	32334067739.9126000
2013-10-01	34938210021.1254000
2014-01-01	33873088754.6889000
2014-04-01	34829908555.0254060
2014-07-01	33754058374.8923030
2014-10-01	33451683547.7689970
2015-01-01	29161124102.6757000
2015-04-01	30338157544.7157970
2015-07-01	29861140775.4859000
2015-10-01	31194849324.4821000
2016-01-01	29226055694.3057020
2016-04-01	31321030833.2409970
2016-07-01	29196134114.4370000
2016-10-01	30767750679.5271000
2017-01-01	30899941295.2383000
2017-04-01	33129871636.9512000
2017-07-01	33484127565.1888000
2017-10-01	37135614192.1295000
2018-01-01	37980834636.1189960
2018-04-01	38149808936.2768000