Month	Dollars
1981-01-01	1816000000
1981-02-01	1790000000
1981-03-01	2398000000
1981-04-01	2175000000
1981-05-01	1843000000
1981-06-01	1961000000
1981-07-01	1454000000
1981-08-01	1860000000
1981-09-01	1558000000
1981-10-01	1484000000
1981-11-01	1766000000
1981-12-01	1909000000
1982-01-01	1436895400
1982-02-01	1485638800
1982-03-01	1512595900
1982-04-01	1814352800
1982-05-01	1624578700
1982-06-01	1628887700
1982-07-01	1466001200
1982-08-01	1449424900
1982-09-01	1563781800
1982-10-01	1659772000
1982-11-01	1474349300
1982-12-01	1783597100
1983-01-01	1583250900
1983-02-01	1387542700
1983-03-01	1582406500
1983-04-01	1756239900
1983-05-01	1692524700
1983-06-01	1467705500
1983-07-01	1649235700
1983-08-01	1823232300
1983-09-01	1993539900
1983-10-01	1998266800
1983-11-01	1930618400
1983-12-01	2471186300
1984-01-01	1616696100
1984-02-01	1681897700
1984-03-01	2018633500
1984-04-01	1981714600
1984-05-01	1975161500
1984-06-01	1839797500
1984-07-01	2105584400
1984-08-01	1992133000
1984-09-01	2373055400
1984-10-01	2350962300
1984-11-01	2622482700
1984-12-01	3391775100
1985-01-01	2506408400
1985-02-01	2768043600
1985-03-01	3088653900
1985-04-01	3048115200
1985-05-01	3473222100
1985-06-01	3521397400
1985-07-01	3542348100
1985-08-01	3552355000
1985-09-01	3571187500
1985-10-01	3384083700
1985-11-01	3813837300
1985-12-01	6256442300
1986-01-01	2292675300
1986-02-01	3168069800
1986-03-01	3390411000
1986-04-01	3889460700
1986-05-01	3584397700
1986-06-01	3695957500
1986-07-01	3444010800
1986-08-01	3655902400
1986-09-01	3469486900
1986-10-01	3401140900
1986-11-01	3602804900
1986-12-01	5577496600
1987-01-01	2057978000
1987-02-01	2920394400
1987-03-01	3339512600
1987-04-01	3530265200
1987-05-01	3328766000
1987-06-01	3457725500
1987-07-01	3430858900
1987-08-01	3438918900
1987-09-01	3710271100
1987-10-01	3385185800
1987-11-01	4083716200
1987-12-01	6708578500
1988-01-01	2358883400
1988-02-01	3151446800
1988-03-01	4043416400
1988-04-01	4320141900
1988-05-01	4387308200
1988-06-01	3954756700
1988-07-01	4467907900
1988-08-01	4744633400
1988-09-01	4908519400
1988-10-01	4610300600
1988-11-01	5577496600
1988-12-01	8753123200
1989-01-01	2915021100
1989-02-01	3635044700
1989-03-01	4997179000
1989-04-01	5800489000
1989-05-01	5308831000
1989-06-01	5378684100
1989-07-01	5177184900
1989-08-01	5083152000
1989-09-01	4419548100
1989-10-01	4690900300
1989-11-01	4892399500
1989-12-01	5983672300
1990-01-01	2564537000
1990-02-01	3523855900
1990-03-01	3875394400
1990-04-01	4303170200
1990-05-01	4561529800
1990-06-01	4252345400
1990-07-01	4398466800
1990-08-01	4589060000
1990-09-01	4404819900
1990-10-01	4555176700
1990-11-01	4655527300
1990-12-01	6591218100
1991-01-01	3071561200
1991-02-01	3121349600
1991-03-01	4942456100
1991-04-01	5161510900
1991-05-01	5154406400
1991-06-01	5069580600
1991-07-01	5151713200
1991-08-01	5455936400
1991-09-01	5430352700
1991-10-01	5134783400
1991-11-01	5573351600
1991-12-01	9140788100
1992-01-01	3016000000
1992-02-01	4851000000
1992-03-01	5893000000
1992-04-01	6084000000
1992-05-01	6358000000
1992-06-01	6820000000
1992-07-01	6273000000
1992-08-01	6370000000
1992-09-01	6842000000
1992-10-01	7115000000
1992-11-01	7635000000
1992-12-01	13343000000
1993-01-01	3204000000
1993-02-01	6473000000
1993-03-01	7582000000
1993-04-01	7484000000
1993-05-01	8509000000
1993-06-01	7376000000
1993-07-01	8763000000
1993-08-01	8743000000
1993-09-01	9568000000
1993-10-01	8637000000
1993-11-01	9541000000
1993-12-01	17966866400
1994-01-01	5716000000
1994-02-01	5963000000
1994-03-01	8725000000
1994-04-01	9407000000
1994-05-01	9468000000
1994-06-01	9857000000
1994-07-01	9621000000
1994-08-01	10035000000
1994-09-01	9214000000
1994-10-01	9408000000
1994-11-01	10307000000
1994-12-01	17916000000
1995-01-01	6500000000
1995-02-01	7123000000
1995-03-01	10241000000
1995-04-01	10278000000
1995-05-01	11493000000
1995-06-01	10955000000
1995-07-01	11126000000
1995-08-01	11580000000
1995-09-01	11292000000
1995-10-01	10971000000
1995-11-01	12046000000
1995-12-01	18474000000
1996-01-01	10132000000
1996-02-01	8137000000
1996-03-01	11135000000
1996-04-01	10926000000
1996-05-01	12009000000
1996-06-01	10908000000
1996-07-01	11304000000
1996-08-01	11139000000
1996-09-01	10294000000
1996-10-01	11309000000
1996-11-01	11622000000
1996-12-01	20028000000
1997-01-01	9977000000
1997-02-01	7729000000
1997-03-01	11098000000
1997-04-01	11220000000
1997-05-01	11558000000
1997-06-01	11220000000
1997-07-01	12820000000
1997-08-01	11070000000
1997-09-01	11480000000
1997-10-01	12842000000
1997-11-01	12097000000
1997-12-01	19078000000
1998-01-01	8695000000
1998-02-01	8993000000
1998-03-01	11765000000
1998-04-01	11686000000
1998-05-01	11291000000
1998-06-01	11857000000
1998-07-01	11964000000
1998-08-01	10879000000
1998-09-01	11543000000
1998-10-01	11653000000
1998-11-01	12300000000
1998-12-01	17679000000
1999-01-01	9900000000
1999-02-01	8722000000
1999-03-01	14400000000
1999-04-01	13800000000
1999-05-01	13657000000
1999-06-01	14523000000
1999-07-01	13900000000
1999-08-01	13446000000
1999-09-01	15268000000
1999-10-01	13800000000
1999-11-01	16900000000
1999-12-01	17472000000
2000-01-01	15272000000
2000-02-01	13400000000
2000-03-01	17800000000
2000-04-01	18361000000
2000-05-01	16966000000
2000-06-01	20300000000
2000-07-01	19500000000
2000-08-01	20788000000
2000-09-01	20717000000
2000-10-01	18920000000
2000-11-01	21600000000
2000-12-01	21400000000
2001-01-01	15541000000
2001-02-01	18239000000
2001-03-01	20750000000
2001-04-01	21868000000
2001-05-01	18808000000
2001-06-01	21276000000
2001-07-01	20944000000
2001-08-01	22174000000
2001-09-01	21842000000
2001-10-01	18896000000
2001-11-01	20834000000
2001-12-01	22381000000
2002-01-01	18976000000
2002-02-01	15913000000
2002-03-01	22432000000
2002-04-01	25744000000
2002-05-01	22437000000
2002-06-01	23084000000
2002-07-01	26984000000
2002-08-01	27199000000
2002-09-01	29774000000
2002-10-01	25189000000
2002-11-01	28710000000
2002-12-01	28728000000
2003-01-01	31012000000
2003-02-01	23751000000
2003-03-01	32492000000
2003-04-01	34565000000
2003-05-01	31579000000
2003-06-01	32329000000
2003-07-01	36496000000
2003-08-01	34598000000
2003-09-01	41624000000
2003-10-01	35150000000
2003-11-01	36855000000
2003-12-01	42309000000
2004-01-01	35714000000
2004-02-01	42019000000
2004-03-01	46479000000
2004-04-01	49529000000
2004-05-01	42984000000
2004-06-01	48894000000
2004-07-01	48980000000
2004-08-01	46821000000
2004-09-01	50719000000
2004-10-01	45440000000
2004-11-01	50970000000
2004-12-01	52680000000
2005-01-01	44253000000
2005-02-01	39900000000
2005-03-01	55217000000
2005-04-01	57676000000
2005-05-01	49425000000
2005-06-01	56242000000
2005-07-01	54912000000
2005-08-01	57789000000
2005-09-01	62630000000
2005-10-01	56076000000
2005-11-01	61690000000
2005-12-01	64396000000
2006-01-01	55497000000
2006-02-01	51680000000
2006-03-01	66860000000
2006-04-01	66490000000
2006-05-01	60110000000
2006-06-01	66810000000
2006-07-01	65710000000
2006-08-01	71970000000
2006-09-01	76340000000
2006-10-01	64300000000
2006-11-01	72930000000
2006-12-01	73100000000
2007-01-01	70740000000
2007-02-01	58340000000
2007-03-01	76550000000
2007-04-01	80600000000
2007-05-01	71590000000
2007-06-01	76360000000
2007-07-01	83380000000
2007-08-01	86350000000
2007-09-01	88580000000
2007-10-01	80673333000
2007-11-01	91340000000
2007-12-01	91730000000
2008-01-01	90170000000
2008-02-01	78810000000
2008-03-01	95620000000
2008-04-01	102240000000
2008-05-01	100550000000
2008-06-01	100250000000
2008-07-01	111470000000
2008-08-01	106050000000
2008-09-01	107050000000
2008-10-01	92930000000
2008-11-01	74810000000
2008-12-01	72180000000
2009-01-01	51375000000
2009-02-01	60062000000
2009-03-01	71883000000
2009-04-01	78980000000
2009-05-01	75690000000
2009-06-01	87511000000
2009-07-01	95151000000
2009-08-01	88243000000
2009-09-01	103199000000
2009-10-01	86848000000
2009-11-01	94691000000
2009-12-01	112349000000
2010-01-01	95530000000
2010-02-01	87126000000
2010-03-01	119467000000
2010-04-01	118444000000
2010-05-01	112213000000
2010-06-01	117153000000
2010-07-01	116888000000
2010-08-01	119475000000
2010-09-01	128356000000
2010-10-01	109107000000
2010-11-01	130970000000
2010-12-01	141466000000
2011-01-01	144591000000
2011-02-01	104270000000
2011-03-01	152310000000
2011-04-01	144370000000
2011-05-01	144120000000
2011-06-01	139700000000
2011-07-01	145020000000
2011-08-01	155380000000
2011-09-01	154990000000
2011-10-01	140220000000
2011-11-01	159720000000
2011-12-01	158160000000
2012-01-01	122788000000
2012-02-01	146395000000
2012-03-01	160395000000
2012-04-01	144581000000
2012-05-01	162863000000
2012-06-01	148482365000
2012-07-01	151793278000
2012-08-01	151312746000
2012-09-01	158680480000
2012-10-01	143524416000
2012-11-01	159747492000
2012-12-01	167611245000
2013-01-01	158219313000
2013-02-01	124141775000
2013-03-01	183013097000
2013-04-01	168899994000
2013-05-01	162341158000
2013-06-01	147191392000
2013-07-01	168173366000
2013-08-01	162089547000
2013-09-01	170426362000
2013-10-01	154298864000
2013-11-01	168403885000
2013-12-01	182101573000
2014-01-01	175262820000
2014-02-01	137082488000
2014-03-01	162404693000
2014-04-01	170087977000
2014-05-01	159551189000
2014-06-01	155223841000
2014-07-01	165590512000
2014-08-01	158629387000
2014-09-01	182724108000
2014-10-01	161461228000
2014-11-01	157186291000
2014-12-01	177900669000
2015-01-01	140226150000
2015-02-01	108571550000
2015-03-01	141487341000
2015-04-01	142196335000
2015-05-01	131190146000
2015-06-01	145436663000
2015-07-01	152071574000
2015-08-01	136628528000
2015-09-01	145212712000
2015-10-01	130752399000
2015-11-01	142718411000
2015-12-01	164294338000
2016-01-01	113898862000
2016-02-01	93552261000
2016-03-01	130956404000
2016-04-01	127200204000
2016-05-01	131083858000
2016-06-01	132275084000
2016-07-01	132414757000
2016-08-01	138543027000
2016-09-01	142520352000
2016-10-01	129102640000
2016-11-01	149316792000
2016-12-01	168599109000
2017-01-01	132466532300
2017-02-01	129293122900
2017-03-01	155544944300
2017-04-01	141561197100
2017-05-01	148809882300
2017-06-01	154732770800
2017-07-01	147682633600
2017-08-01	158888447900
2017-09-01	172378698500
2017-10-01	150146769400
2017-11-01	176690109300
2017-12-01	177779800000
2018-01-01	184880597100
2018-02-01	140667419200
2018-03-01	179983240800
2018-04-01	172662477600
2018-05-01	185871945200