Quarter	US Dollars, monthly level
1960-01-01	237187500.00000000
1960-04-01	283750000.00000000
1960-07-01	247812500.00000000
1960-10-01	295312500.00000000
1961-01-01	275000000.00000000
1961-04-01	283750000.00000000
1961-07-01	283125000.00000000
1961-10-01	311875000.00000000
1962-01-01	302500000.00000000
1962-04-01	316875000.00000000
1962-07-01	289062500.00000000
1962-10-01	319375000.00000000
1963-01-01	213668770.62786300
1963-04-01	343173117.71789200
1963-07-01	311187957.89944696
1963-10-01	332627512.86079000
1964-01-01	335549512.91066796
1964-04-01	391469080.66514600
1964-07-01	364945190.59484196
1964-10-01	404242235.95047796
1965-01-01	386635418.81818200
1965-04-01	434520146.84058500
1965-07-01	397576044.19377700
1965-10-01	417451325.51581700
1966-01-01	386067349.77369600
1966-04-01	431760562.89585900
1966-07-01	420588914.38007200
1966-10-01	477422601.31640700
1967-01-01	417783603.62431200
1967-04-01	432077282.34722000
1967-07-01	388895964.11720300
1967-10-01	444557363.09496700
1968-01-01	358487796.06144200
1968-04-01	432724524.85849100
1968-07-01	354781831.74834000
1968-10-01	442905834.87071100
1969-01-01	461203225.72729900
1969-04-01	476413602.16729003
1969-07-01	480366051.50138800
1969-10-01	604365588.67929900
1970-01-01	546913961.38592700
1970-04-01	645230235.81657100
1970-07-01	637393431.33296900
1970-10-01	800974714.31371600
1971-01-01	599928834.06476100
1971-04-01	662366160.76319700
1971-07-01	679398036.06465700
1971-10-01	848005341.61176500
1972-01-01	711417253.84394110
1972-04-01	793474596.69454100
1972-07-01	767547029.26731000
1972-10-01	879837662.93305900
1973-01-01	961167937.10020100
1973-04-01	1005803335.62201000
1973-07-01	1121823477.48148000
1973-10-01	1257129123.53571000
1974-01-01	1460859177.24244000
1974-04-01	1682050552.11003000
1974-07-01	1831434266.93141000
1974-10-01	1854188926.06972000
1975-01-01	2102708572.26802000
1975-04-01	1890516645.75676000
1975-07-01	1771614512.62845000
1975-10-01	1879716655.69653990
1976-01-01	1649037493.37188000
1976-04-01	1611975944.52492000
1976-07-01	1940782236.89625000
1976-10-01	2206951345.07392020
1977-01-01	1782312526.04067000
1977-04-01	1896934449.21072000
1977-07-01	1886583292.03360000
1977-10-01	2058151842.93616000
1978-01-01	1810965258.27147980
1978-04-01	1889629394.89680980
1978-07-01	1898515402.08848000
1978-10-01	2282263891.08297000
1979-01-01	2298333136.74962000
1979-04-01	2545111349.42684000
1979-07-01	3004694699.51337000
1979-10-01	3574439922.65250000
1980-01-01	3623014271.10679000
1980-04-01	3782091264.87905030
1980-07-01	4292114903.84360000
1980-10-01	3981790208.64788960
1981-01-01	3377951179.16112000
1981-04-01	3651577781.58070000
1981-07-01	3434766342.78421000
1981-10-01	3763821198.24151000
1982-01-01	3289312392.55359000
1982-04-01	3322585925.97115000
1982-07-01	3217375102.59326030
1982-10-01	3592066104.28510000
1983-01-01	3041182133.23161000
1983-04-01	3163767672.29755970
1983-07-01	3149428823.05021000
1983-10-01	3485250705.77853970
1984-01-01	2938155988.43399000
1984-04-01	3253110808.61612000
1984-07-01	3146098570.39019000
1984-10-01	3108423367.46236000
1985-01-01	2788491222.04923000
1985-04-01	3318470959.94100000
1985-07-01	3250831268.30837000
1985-10-01	3905229765.16894960
1986-01-01	3941580800.71695000
1986-04-01	3096310133.30332000
1986-07-01	4185112802.04156060
1986-10-01	4107228212.53116000
1987-01-01	4334199529.94278050
1987-04-01	4722189561.52454000
1987-07-01	4600054014.61151000
1987-10-01	5228310700.90891900
1988-01-01	4899624779.62586000
1988-04-01	5759838592.12522000
1988-07-01	5424495011.71411000
1988-10-01	5918029797.74216000
1989-01-01	5745001176.68663000
1989-04-01	5800565587.09044900
1989-07-01	5968403957.92274000
1989-10-01	7109034506.70762100
1990-01-01	6264126598.08963000
1990-04-01	6996516200.52272000
1990-07-01	6223398198.12048000
1990-10-01	7514364969.94962000
1991-01-01	6040621128.82408000
1991-04-01	5222070052.17295900
1991-07-01	4959403439.14798000
1991-10-01	5565444735.76552000
1992-01-01	5237539180.49216000
1992-04-01	5602424083.20299100
1992-07-01	5064121322.43985900
1992-10-01	5261991681.01798000
1993-01-01	4506116624.48109100
1993-04-01	4537375120.39083000
1993-07-01	4205841143.80829000
1993-10-01	4743058776.11612000
1994-01-01	4509429641.92583000
1994-04-01	5507981027.58008000
1994-07-01	5735725603.24291000
1994-10-01	7603087336.32314000
1995-01-01	6895898521.69626000
1995-04-01	7898421263.60751000
1995-07-01	7448412484.70451000
1995-10-01	8516934794.06773000
1996-01-01	7852803270.69973900
1996-04-01	7704607371.57862000
1996-07-01	7580225673.16148000
1996-10-01	8904580580.09998000
1997-01-01	7693977453.27397000
1997-04-01	8071835248.75818100
1997-07-01	7541415239.47024900
1997-10-01	8638477918.16495000
1998-01-01	8013407531.61729000
1998-04-01	8124114168.02903000
1998-07-01	7860335397.34057000
1998-10-01	8758717929.17768000
1999-01-01	7990951319.64542000
1999-04-01	7766096274.23074000
1999-07-01	7684129141.53432000
1999-10-01	8647278376.59735100
2000-01-01	8323648620.19032100
2000-04-01	8773103548.92703000
2000-07-01	8105974175.14292050
2000-10-01	9115607378.89812000
2001-01-01	8743705294.35335200
2001-04-01	8000735757.32725900
2001-07-01	7628428255.13448000
2001-10-01	8298335246.60000000
2002-01-01	7671270618.82295000
2002-04-01	8466632850.19183900
2002-07-01	8644082008.98757000
2002-10-01	9438631704.18095000
2003-01-01	10374478207.46600000
2003-04-01	10566136579.96000100
2003-07-01	9952232337.38044000
2003-10-01	11647988012.88650100
2004-01-01	12019267411.26879900
2004-04-01	12267464786.11229900
2004-07-01	12450894681.67130000
2004-10-01	14730671935.41820100
2005-01-01	14439530019.71670200
2005-04-01	14772345008.23300000
2005-07-01	14128914805.56170000
2005-10-01	15349043033.29230100
2006-01-01	15870362058.79839900
2006-04-01	17195057004.94730000
2006-07-01	17624232356.35180000
2006-10-01	18792993307.97590300
2007-01-01	19209794145.46630000
2007-04-01	20306511730.41060300
2007-07-01	19924837260.19850000
2007-10-01	22332238305.87600000
2008-01-01	23575863929.56000000
2008-04-01	25829111968.80370300
2008-07-01	24011163356.72500000
2008-10-01	18610664808.13540000
2009-01-01	14421977727.88250000
2009-04-01	14111856557.60250000
2009-07-01	15421682782.59230000
2009-10-01	16914046344.96800000
2010-01-01	15564652317.09890000
2010-04-01	16255583825.52870000
2010-07-01	17424894934.13170000
2010-10-01	19525290036.41399800
2011-01-01	20537919882.92920000
2011-04-01	21803152109.47340000
2011-07-01	20678687531.22400000
2011-10-01	21233904508.47230000
2012-01-01	20207579707.13610000
2012-04-01	18933461879.35530000
2012-07-01	18043161942.31860000
2012-10-01	19400595639.75309800
2013-01-01	19297467265.89710200
2013-04-01	18379946652.17970000
2013-07-01	19561535404.52039700
2013-10-01	20338398466.90460000
2014-01-01	19398926923.53450000
2014-04-01	20262803259.37300000
2014-07-01	18925635678.84910200
2014-10-01	18183838333.16860200
2015-01-01	15486032028.57930000
2015-04-01	14452100548.04960000
2015-07-01	14869066924.41339900
2015-10-01	15634787065.05300100
2016-01-01	14410635932.12209900
2016-04-01	15684242151.23630000
2016-07-01	14948943175.71900000
2016-10-01	15782207364.19250000
2017-01-01	16305270051.17599900
2017-04-01	17143008070.23870000
2017-07-01	18065697990.96670000
2017-10-01	19086083255.84360000
2018-01-01	19877249554.04230000
2018-04-01	19575200373.28880300