Quarter	US Dollars, monthly level
1960-01-01	33277870.216306202
1960-04-01	33277870.216306202
1960-07-01	55438521.409870000
1960-10-01	110864745.011085990
1961-01-01	88691796.008869200
1961-04-01	110864745.011085990
1961-07-01	133037694.013304010
1961-10-01	166297117.516630020
1962-01-01	110864745.011085990
1962-04-01	155210643.015521020
1962-07-01	155210643.015521020
1962-10-01	199556541.019956020
1963-01-01	144124168.514412020
1963-04-01	166297117.516630020
1963-07-01	166297117.516630020
1963-10-01	210643015.521063980
1964-01-01	143805309.734512980
1964-04-01	154867256.637168000
1964-07-01	121681415.929204000
1964-10-01	121681415.929204000
1965-01-01	132743362.831858010
1965-04-01	154867256.637168000
1965-07-01	143805309.734512980
1965-10-01	143805309.734512980
1966-01-01	176991150.442478000
1966-04-01	176991150.442478000
1966-07-01	176991150.442478000
1966-10-01	176991150.442478000
1967-01-01	154867256.637168000
1967-04-01	176991150.442478000
1967-07-01	176991150.442478000
1967-10-01	176991150.442478000
1968-01-01	176991150.442478000
1968-04-01	210176991.150442000
1968-07-01	176991150.442478000
1968-10-01	199115044.247788000
1969-01-01	207265154.867257000
1969-04-01	207997455.752212020
1969-07-01	197219137.168142000
1969-10-01	192300110.619469000
1970-01-01	288718584.073325040
1970-04-01	348187278.764111000
1970-07-01	199976681.825020000
1970-10-01	157166700.168239000
1971-01-01	289576214.406714000
1971-04-01	326128241.207555000
1971-07-01	298079664.993019040
1971-10-01	279992988.264401000
1972-01-01	325330600.708854000
1972-04-01	396023533.571510000
1972-07-01	407912084.808338000
1972-10-01	449847632.511794000
1973-01-01	472309428.571429000
1973-04-01	506607714.285714030
1973-07-01	510803785.714285970
1973-10-01	638219285.714286000
1974-01-01	727770071.428571000
1974-04-01	943648500.000000000
1974-07-01	877119000.000000000
1974-10-01	1245153000.000000000
1975-01-01	1222455785.714290000
1975-04-01	1298223299.611600200
1975-07-01	1146222345.148399800
1975-10-01	1162147254.237290000
1976-01-01	1364055710.301020000
1976-04-01	1123203605.235040000
1976-07-01	1395292687.500000000
1976-10-01	1374081301.818179800
1977-01-01	1510213479.107000000
1977-04-01	1610342914.285709900
1977-07-01	1570946447.117800000
1977-10-01	1218792623.376620000
1978-01-01	1148335572.467530000
1978-04-01	1256932360.000000000
1978-07-01	900983760.000000000
1978-10-01	1424660880.000000000
1979-01-01	1682130280.000000000
1979-04-01	1394607010.095030000
1979-07-01	917992917.213291000
1979-10-01	1074702094.264649900
1980-01-01	1711784234.638610100
1980-04-01	1675130123.801670000
1980-07-01	2295209501.104409700
1980-10-01	2301364285.432269600
1981-01-01	2762944889.596750300
1981-04-01	2292252667.890120000
1981-07-01	2032973658.446800000
1981-10-01	2130460369.390339900
1982-01-01	1996847167.159470000
1982-04-01	2251830693.061120000
1982-07-01	2015959264.963529800
1982-10-01	2733893719.295850300
1983-01-01	2400780076.719460000
1983-04-01	2142276705.116880000
1983-07-01	2116955959.740500000
1983-10-01	2762259853.069640000
1984-01-01	2213393307.273860000
1984-04-01	2710826188.438660000
1984-07-01	2693172662.195190000
1984-10-01	3300217200.946430000
1985-01-01	2458643984.758770000
1985-04-01	2607484089.043780000
1985-07-01	2899954553.455660300
1985-10-01	3479146872.748320000
1986-01-01	2857262075.239770000
1986-04-01	2691852785.073300000
1986-07-01	2698651973.749980000
1986-10-01	3030713449.517130400
1987-01-01	2855961125.302170300
1987-04-01	3041190315.546290000
1987-07-01	3519262610.150430000
1987-10-01	4768308461.556319000
1988-01-01	3497495904.500120000
1988-04-01	3790291593.154659700
1988-07-01	3274691106.170870300
1988-10-01	3782052712.915220000
1989-01-01	3326276639.434970000
1989-04-01	3815229506.873470000
1989-07-01	4001070398.495700000
1989-10-01	4678508728.491960000
1990-01-01	4737491596.098100000
1990-04-01	4880470050.792860000
1990-07-01	5443718381.042490000
1990-10-01	7284796683.928250000
1991-01-01	4911537091.060410000
1991-04-01	4734066288.525290500
1991-07-01	5239704993.612530000
1991-10-01	6139408909.543300000
1992-01-01	4960978228.594790000
1992-04-01	5496355735.338250000
1992-07-01	5873412569.881380000
1992-10-01	6600185311.278689000
1993-01-01	5922643184.112940000
1993-04-01	7822148605.296880000
1993-07-01	7479560557.750710000
1993-10-01	8305094673.255500000
1994-01-01	5891319939.911030000
1994-04-01	4771527328.095400000
1994-07-01	5322201519.378130000
1994-10-01	6918290237.354780000
1995-01-01	6842887313.496600000
1995-04-01	8616486629.389349000
1995-07-01	9090043790.234950000
1995-10-01	10871634741.675500000
1996-01-01	9756620915.200920000
1996-04-01	10868525824.727900000
1996-07-01	10649805027.216002000
1996-10-01	11988169125.646000000
1997-01-01	10483438915.840700000
1997-04-01	11569564374.362900000
1997-07-01	12507844810.911500000
1997-10-01	13533525719.555200000
1998-01-01	11235045549.753200000
1998-04-01	11896711680.749601000
1998-07-01	11536220786.109700000
1998-10-01	10976042817.149500000
1999-01-01	7945273666.429880000
1999-04-01	10236573852.926498000
1999-07-01	10338173207.446999000
1999-10-01	11681442256.980300000
2000-01-01	11318715075.362000000
2000-04-01	14129431618.593300000
2000-07-01	14188333734.770300000
2000-10-01	14809427036.196701000
2001-01-01	10733038847.507100000
2001-04-01	9903454470.468119000
2001-07-01	10407233152.522000000
2001-10-01	10345628154.519600000
2002-01-01	10369227720.175900000
2002-04-01	12382418941.775599000
2002-07-01	13489749358.087300000
2002-10-01	15143269067.453700000
2003-01-01	14308965192.223800000
2003-04-01	16560851806.777900000
2003-07-01	18462166292.122902000
2003-10-01	20051762197.726500000
2004-01-01	20977399358.073500000
2004-04-01	24313786495.402400000
2004-07-01	25071908486.601402000
2004-10-01	27401134230.191800000
2005-01-01	25859604321.897697000
2005-04-01	29503634086.072200000
2005-07-01	30341367361.919200000
2005-10-01	31612059852.042300000
2006-01-01	29709492382.178600000
2006-04-01	36590007904.561400000
2006-07-01	36424595175.214500000
2006-10-01	37367354531.405100000
2007-01-01	35442931383.278900000
2007-04-01	42444051802.097300000
2007-07-01	44680973312.814600000
2007-10-01	48654545381.492805000
2008-01-01	49155059665.435100000
2008-04-01	57103679166.642600000
2008-07-01	57990109415.896400000
2008-10-01	38041448150.515700000
2009-01-01	28828115505.458603000
2009-04-01	33701065363.520700000
2009-07-01	38405213966.463400000
2009-10-01	40543294346.216600000
2010-01-01	38631622453.565200000
2010-04-01	45013012429.282295000
2010-07-01	47285233814.465700000
2010-10-01	55067872627.302600000
2011-01-01	56300656599.323000000
2011-04-01	63840967688.510800000
2011-07-01	62096516491.976500000
2011-10-01	59316506181.894500000
2012-01-01	56341814865.826900000
2012-04-01	61710644264.396900000
2012-07-01	59895122014.774500000
2012-10-01	59944322831.707800000
2013-01-01	58914047311.411800000
2013-04-01	66933618013.931400000
2013-07-01	61702989487.092400000
2013-10-01	63936563226.759200000
2014-01-01	57321901549.572600000
2014-04-01	62396053304.397300000
2014-07-01	59935658011.591200000
2014-10-01	62311393954.234500000
2015-01-01	52052256153.894500000
2015-04-01	54375723177.555100000
2015-07-01	49364044607.763100000
2015-10-01	51010099813.718400000
2016-01-01	46883615484.300000000
2016-04-01	52885556731.059100000
2016-07-01	46621666354.655600000
2016-10-01	52046787926.259100000
2017-01-01	50409286752.398300000
2017-04-01	57984814154.379105000
2017-07-01	60692971283.415504000
2017-10-01	64646436372.417694000
2018-01-01	61833700045.455900000
2018-04-01	60557267975.290500000
2018-07-01	50394504765.411000000