Quarter	US Dollars, monthly level
1960-01-01	1157590023.1518000
1960-04-01	1188918889.3113300
1960-07-01	1174419878.4660700
1960-10-01	1236736218.7649000
1961-01-01	1308910345.5373201
1961-04-01	1326914901.3831701
1961-07-01	1259802942.3326000
1961-10-01	1359685017.0443900
1962-01-01	1449300256.3651102
1962-04-01	1464400095.3712700
1962-07-01	1514341132.7271700
1962-10-01	1687979374.8677900
1963-01-01	1708210034.1641998
1963-04-01	1919933566.7580600
1963-07-01	1966197071.2995800
1963-10-01	2038858817.4618900
1964-01-01	2086930836.4365299
1964-04-01	1912000000.0000000
1964-07-01	1540800000.0000000
1964-10-01	1715200000.0000000
1965-01-01	1768000000.0000000
1965-04-01	1784000000.0000000
1965-07-01	1805926898.3845900
1965-10-01	2020800000.0000000
1966-01-01	2112351495.2888200
1966-04-01	2094455457.5936800
1966-07-01	2085763740.6299600
1966-10-01	2306415548.5379600
1967-01-01	2380551153.0527997
1967-04-01	2402799477.4991700
1967-07-01	2334936107.3172600
1967-10-01	2724663014.1704903
1968-01-01	2318294836.5105800
1968-04-01	2580723115.7299500
1968-07-01	2551207684.1668100
1968-10-01	2863019359.9988900
1969-01-01	2889008724.5188800
1969-04-01	3112558928.2469897
1969-07-01	3067186985.4547200
1969-10-01	3356908773.4126400
1970-01-01	3421330584.5448500
1970-04-01	3805579503.0703797
1970-07-01	3724018751.8798100
1970-10-01	3972787077.3396000
1971-01-01	4007183080.2832800
1971-04-01	3939279996.9619700
1971-07-01	3776767597.8346100
1971-10-01	4293657940.2272900
1972-01-01	4485670396.3932800
1972-04-01	4732960939.9060500
1972-07-01	4630314709.9815900
1972-10-01	5432167700.9430100
1973-01-01	5331683306.6922810
1973-04-01	6862485647.5169310
1973-07-01	7390240435.4420900
1973-10-01	8272904903.5650210
1974-01-01	9277688361.2642610
1974-04-01	10367119883.3653000
1974-07-01	10811568623.3096000
1974-10-01	10608309561.6080000
1975-01-01	9009962381.4081500
1975-04-01	9348175302.7869100
1975-07-01	9186491033.7430300
1975-10-01	10824010532.7419990
1976-01-01	9841364889.0080000
1976-04-01	10830376041.2439000
1976-07-01	10328748492.8313000
1976-10-01	12984293614.5120000
1977-01-01	11371392246.5974000
1977-04-01	12489223666.9077000
1977-07-01	10549969661.6619000
1977-10-01	13683622425.5609000
1978-01-01	11249707939.1591990
1978-04-01	13386532611.6800000
1978-07-01	12850519663.5745010
1978-10-01	19046999091.7876000
1979-01-01	16087767231.2202010
1979-04-01	17994686349.9649000
1979-07-01	17848932425.1932030
1979-10-01	25924713504.5212020
1980-01-01	23105890455.6901000
1980-04-01	24321218017.9288980
1980-07-01	25447226708.8210000
1980-10-01	26857668266.0733000
1981-01-01	20925180946.2040020
1981-04-01	24294839396.2765000
1981-07-01	21923157562.2482000
1981-10-01	23861130444.4968000
1982-01-01	23632131011.5823000
1982-04-01	22604958328.9259000
1982-07-01	19557023746.5534020
1982-10-01	20414370317.9918000
1983-01-01	20543255943.2635000
1983-04-01	20092821657.2286000
1983-07-01	18779669689.0323000
1983-10-01	20928845187.6486000
1984-01-01	20965095872.1186000
1984-04-01	20697879037.0648000
1984-07-01	19553297287.0283000
1984-10-01	23002858488.8783000
1985-01-01	21126560587.2812000
1985-04-01	22529191977.2403000
1985-07-01	19485325376.3991000
1985-10-01	27873611895.1180000
1986-01-01	26136793620.7301980
1986-04-01	24524756135.6984980
1986-07-01	22300889379.9987000
1986-10-01	26963244731.0231970
1987-01-01	29341216881.4823000
1987-04-01	31245926997.1690000
1987-07-01	28514346116.4406970
1987-10-01	35745202112.8596040
1988-01-01	34001280882.9236030
1988-04-01	36139811273.4822000
1988-07-01	30217602571.1738970
1988-10-01	38218887407.5355000
1989-01-01	38643626374.5495000
1989-04-01	39145294259.0120000
1989-07-01	34086946952.8306000
1989-10-01	41108733676.8509100
1990-01-01	44851471046.7950000
1990-04-01	44996917836.0206000
1990-07-01	40266123692.0687000
1990-10-01	51876591844.3865050
1991-01-01	49039884797.8998000
1991-04-01	45959422152.5377000
1991-07-01	39280248898.0387950
1991-10-01	48269987679.5902000
1992-01-01	49561185209.2807000
1992-04-01	50095568535.2659000
1992-07-01	44909235508.0787050
1992-10-01	44032707842.0305940
1993-01-01	38119268986.1916960
1993-04-01	39987969449.6019000
1993-07-01	32399974420.5748980
1993-10-01	37882034157.6280000
1994-01-01	38789812296.5244100
1994-04-01	42416827834.1759950
1994-07-01	38972807034.0837000
1994-10-01	48929592536.7700040
1995-01-01	46179833013.9320000
1995-04-01	46120085744.8545000
1995-07-01	43165684069.0824050
1995-10-01	51792909920.2084050
1996-01-01	52547328139.5003000
1996-04-01	51361444534.0313000
1996-07-01	45830245752.0814060
1996-10-01	56040680720.3482000
1997-01-01	51299749974.9508000
1997-04-01	54343155948.0100000
1997-07-01	47130357506.0244100
1997-10-01	58038284568.0180000
1998-01-01	55003979352.2794000
1998-04-01	55337617600.1174000
1998-07-01	48274019535.6416000
1998-10-01	58893829422.6529000
1999-01-01	54606475803.9316000
1999-04-01	54225974500.8404000
1999-07-01	49897398598.4742000
1999-10-01	61725586508.9495000
2000-01-01	60648835483.9581000
2000-04-01	60309701749.7161940
2000-07-01	54971064073.1071000
2000-10-01	62312611081.1562000
2001-01-01	63637263487.3058000
2001-04-01	60487967379.8730000
2001-07-01	52886114465.8981000
2001-10-01	59323560650.4910000
2002-01-01	56801285514.9168000
2002-04-01	61083741205.3456040
2002-07-01	58547454156.4522900
2002-10-01	70522217648.2022000
2003-01-01	72473255146.5607000
2003-04-01	74675895399.9431000
2003-07-01	65973182148.4714000
2003-10-01	84663331032.4832900
2004-01-01	86413981838.2436000
2004-04-01	88574508542.7301000
2004-07-01	82152174636.1783000
2004-10-01	98230745146.3082000
2005-01-01	97353071964.7548000
2005-04-01	99502532512.6678000
2005-07-01	89966971210.6753000
2005-10-01	97723952250.4262000
2006-01-01	105897455297.3070000
2006-04-01	112285710856.2840000
2006-07-01	106152004156.2450000
2006-10-01	118421829822.5550000
2007-01-01	124121319504.8830100
2007-04-01	127137436895.0670000
2007-07-01	121201876570.1140000
2007-10-01	139409770168.6890000
2008-01-01	148348755790.2100000
2008-04-01	155168758838.9060000
2008-07-01	140033798431.5410000
2008-10-01	118610829984.0779900
2009-01-01	98950104380.4297000
2009-04-01	99255643336.0337000
2009-07-01	100982194145.6280000
2009-10-01	115291825243.5630000
2010-01-01	117949650598.4800100
2010-04-01	117708008350.2250000
2010-07-01	115822052085.3730000
2010-10-01	135591965521.5580000
2011-01-01	141863316986.2290000
2011-04-01	150123301037.4160200
2011-07-01	135743129902.6530200
2011-10-01	130996356382.7460000
2012-01-01	130574821100.2789900
2012-04-01	124489940032.9570000
2012-07-01	113459713975.5030000
2012-10-01	120663158259.8550000
2013-01-01	122193389750.4580000
2013-04-01	118438507814.8750000
2013-07-01	116234206740.1190000
2013-10-01	122444154654.3050000
2014-01-01	123121612224.8030100
2014-04-01	124735363777.5640100
2014-07-01	114863950426.1969900
2014-10-01	111648779766.4260100
2015-01-01	103936471601.2720000
2015-04-01	107705158987.3000000
2015-07-01	98737741428.2145100
2015-10-01	100630157800.1510000
2016-01-01	100243603477.6019900
2016-04-01	106310738260.4300000
2016-07-01	97607009783.1795000
2016-10-01	102422206167.9050000
2017-01-01	108936057914.8220000
2017-04-01	112186926946.6130000
2017-07-01	110543172641.1610000
2017-10-01	120455571858.8970000
2018-01-01	128952887241.3239900
2018-04-01	128200121723.4740100