Quarter	US Dollars, Monthly Level
1971-01-01	747490000.0000000
1971-04-01	793925000.0000000
1971-07-01	857425000.0000000
1971-10-01	848553000.0000000
1972-01-01	883204000.0000000
1972-04-01	1058666000.0000001
1972-07-01	1089627000.0000000
1972-10-01	1200851000.0000000
1973-01-01	1166272000.0000000
1973-04-01	1334341000.0000000
1973-07-01	1642403000.0000000
1973-10-01	2049221999.9999998
1974-01-01	2524334000.0000000
1974-04-01	3108086000.0000000
1974-07-01	3521247000.0000000
1974-10-01	3487653000.0000000
1975-01-01	2964698000.0000000
1975-04-01	3053763000.0000000
1975-07-01	3144133000.0000000
1975-10-01	3047746000.0000000
1976-01-01	2790939000.0000000
1976-04-01	3052097000.0000000
1976-07-01	3338476000.0000000
1976-10-01	3201470000.0000000
1977-01-01	2848002000.0000000
1977-04-01	3118145000.0000000
1977-07-01	3080778000.0000000
1977-10-01	2976487000.0000000
1978-01-01	3032109000.0000000
1978-04-01	3275715000.0000000
1978-07-01	3759047000.0000000
1978-10-01	3616275000.0000000
1979-01-01	3558673000.0000000
1979-04-01	3976528000.0000000
1979-07-01	5061093000.0000000
1979-10-01	5487567000.0000000
1980-01-01	5482699000.0000000
1980-04-01	5749636000.0000000
1980-07-01	6043533000.0000000
1980-10-01	5679301000.0000000
1981-01-01	5605693000.0000000
1981-04-01	5565231000.0000000
1981-07-01	5610203000.0000000
1981-10-01	5309453000.0000000
1982-01-01	4804068000.0000000
1982-04-01	4872297000.0000000
1982-07-01	5071835000.0000000
1982-10-01	4646798000.0000000
1983-01-01	3824626000.0000000
1983-04-01	3651819000.0000000
1983-07-01	3907559000.0000000
1983-10-01	4044921000.0000005
1984-01-01	3155036000.0000000
1984-04-01	3406637000.0000000
1984-07-01	3730687000.0000000
1984-10-01	3623461000.0000000
1985-01-01	3094400000.0000000
1985-04-01	3016311000.0000000
1985-07-01	3132099000.0000000
1985-10-01	3910681000.0000000
1986-01-01	3352744000.0000000
1986-04-01	2760355000.0000000
1986-07-01	3660608000.0000000
1986-10-01	4270597000.0000005
1987-01-01	3565030000.0000000
1987-04-01	3610681000.0000000
1987-07-01	3987449000.0000000
1987-10-01	3887667000.0000000
1988-01-01	3516348000.0000000
1988-04-01	3349160000.0000000
1988-07-01	3776456000.0000000
1988-10-01	3963290000.0000000
1989-01-01	3680089484.0000000
1989-04-01	4112751782.0000000
1989-07-01	5379302192.0000000
1989-10-01	5091289280.0000000
1990-01-01	4576074874.0000000
1990-04-01	4265903787.0000000
1990-07-01	5474193029.0000000
1990-10-01	6345190349.0000000
1991-01-01	4330365511.0000000
1991-04-01	5034160904.0000000
1991-07-01	5613849397.0000000
1991-10-01	6062094980.0000000
1992-01-01	4630637621.0000000
1992-04-01	4725063552.0000000
1992-07-01	5221926538.0000000
1992-10-01	5976463340.0000000
1993-01-01	5230590524.0000000
1993-04-01	6007017145.0000000
1993-07-01	7328720834.0000000
1993-10-01	6689672424.0000000
1994-01-01	6047713696.0000000
1994-04-01	7275540841.0000000
1994-07-01	7931217395.0000000
1994-10-01	11824218200.0000000
1995-01-01	12017747346.0000000
1995-04-01	13657216040.0000000
1995-07-01	12151658797.0000000
1995-10-01	12145274024.0000000
1996-01-01	10751025263.0000000
1996-04-01	12490877265.0000000
1996-07-01	14216803637.0000000
1996-10-01	15887060991.0000000
1997-01-01	11443337579.0000000
1997-04-01	15382573312.0000000
1997-07-01	16514224772.9999980
1997-10-01	16144704613.9999980
1998-01-01	13709863283.0000000
1998-04-01	14027096041.0000000
1998-07-01	15252375016.0000000
1998-10-01	14607573171.0000000
1999-01-01	10848421561.0000000
1999-04-01	12206635637.0000000
1999-07-01	12712371834.0000000
1999-10-01	13414215295.0000000
2000-01-01	12051209364.0000000
2000-04-01	13264643396.0000000
2000-07-01	15334412529.0000000
2000-10-01	15240853420.0000000
2001-01-01	14428048984.0000000
2001-04-01	14491327477.0000000
2001-07-01	14077015473.0000000
2001-10-01	12448174228.0000000
2002-01-01	10838404307.0000000
2002-04-01	11579363524.0000000
2002-07-01	13168839760.0000000
2002-10-01	11553558047.0000000
2003-01-01	11241621016.0000000
2003-04-01	11371273913.0000000
2003-07-01	12379635085.0000000
2003-10-01	13277399586.0000000
2004-01-01	13293317336.0000000
2004-04-01	14980969516.0000000
2004-07-01	16884712067.9999980
2004-10-01	17585506593.0000000
2005-01-01	16121732637.0000000
2005-04-01	17843117241.0000000
2005-07-01	20036575740.0000000
2005-10-01	19466965845.0000000
2006-01-01	20107779524.0000000
2006-04-01	21359857144.0000000
2006-07-01	25171152347.0000000
2006-10-01	24554066335.0000000
2007-01-01	25160448806.0000000
2007-04-01	27307216651.0000000
2007-07-01	33013400706.0000000
2007-10-01	34994316810.0000000
2008-01-01	35967109530.0000000
2008-04-01	43466571960.0000000
2008-07-01	51882279791.0000000
2008-10-01	41802627504.0000000
2009-01-01	28189183347.0000000
2009-04-01	27875658485.0000000
2009-07-01	34605351191.0000000
2009-10-01	37141960876.0000000
2010-01-01	38371492508.0000000
2010-04-01	42952376385.0000000
2010-07-01	50919011655.0000000
2010-10-01	49532088830.0000000
2011-01-01	48100016873.0000000
2011-04-01	57248739335.0000000
2011-07-01	61584086209.0000000
2011-10-01	59311379711.0000000
2012-01-01	52667518955.0000000
2012-04-01	57518670736.0000000
2012-07-01	54750890395.0000000
2012-10-01	58429640937.0000000
2013-01-01	55986248985.0000000
2013-04-01	61508850002.0000000
2013-07-01	61802677989.0000000
2013-10-01	60383454659.0000000
2014-01-01	55661036665.0000000
2014-04-01	57373586554.0000000
2014-07-01	61320183345.0000000
2014-10-01	54773036750.0000000
2015-01-01	48323057060.0000000
2015-04-01	43777013827.0000000
2015-07-01	42130406736.0000000
2015-10-01	37228522136.0000000
2016-01-01	32193501411.0000000
2016-04-01	34419718633.0000000
2016-07-01	36597607253.0000000
2016-10-01	34375003679.0000000
2017-01-01	36048760065.0000000
2017-04-01	35440903101.0000000
2017-07-01	39840965995.0000000
2017-10-01	39418865260.0000000
2018-01-01	42419304266.0000000
2018-04-01	41375107575.0000000
2018-07-01	51544485573.0000000