Month	Dollars
1950-12-01	348000000
1951-12-01	198000000
1952-12-01	209000000
1953-12-01	284000000
1954-12-01	161000000
1955-12-01	168000000
1956-12-01	287000000
1957-01-01	283000000
1957-02-01	277000000
1957-03-01	249000000
1957-04-01	209000000
1957-05-01	175000000
1957-06-01	126000000
1957-07-01	90000000
1957-08-01	113000000
1957-09-01	124000000
1957-10-01	159000000
1957-11-01	141000000
1957-12-01	152000000
1958-01-01	112000000
1958-02-01	106000000
1958-03-01	96000000
1958-04-01	97000000
1958-05-01	138000000
1958-06-01	120000000
1958-07-01	126000000
1958-08-01	180000000
1958-09-01	152000000
1958-10-01	141000000
1958-11-01	130000000
1958-12-01	140000000
1959-01-01	173000000
1959-02-01	185000000
1959-03-01	152000000
1959-04-01	114000000
1959-05-01	124000000
1959-06-01	114000000
1959-07-01	134000000
1959-08-01	147000000
1959-09-01	150000000
1959-10-01	124000000
1959-11-01	118000000
1959-12-01	111000000
1960-01-01	98000000
1960-02-01	112000000
1960-03-01	96000000
1960-04-01	122000000
1960-05-01	131000000
1960-06-01	130000000
1960-07-01	130000000
1960-08-01	132000000
1960-09-01	139000000
1960-10-01	141000000
1960-11-01	131000000
1960-12-01	141000000
1961-01-01	44000000
1961-02-01	33000000
1961-03-01	40000000
1961-04-01	37000000
1961-05-01	53000000
1961-06-01	49000000
1961-07-01	41000000
1961-08-01	49000000
1961-09-01	81000000
1961-10-01	91000000
1961-11-01	167000000
1961-12-01	185000000
1962-01-01	133000000
1962-02-01	135000000
1962-03-01	132000000
1962-04-01	157000000
1962-05-01	146000000
1962-06-01	122000000
1962-07-01	102000000
1962-08-01	86000000
1962-09-01	82000000
1962-10-01	56000000
1962-11-01	80000000
1962-12-01	60000000
1963-01-01	60000000
1963-02-01	60000000
1963-03-01	60000000
1963-04-01	60000000
1963-05-01	60000000
1963-06-01	60000000
1963-07-01	61000000
1963-08-01	63000000
1963-09-01	64000000
1963-10-01	66000000
1963-11-01	68000000
1963-12-01	69000000
1964-01-01	73000000
1964-02-01	77000000
1964-03-01	81000000
1964-04-01	74000000
1964-05-01	67000000
1964-06-01	61000000
1964-07-01	68000000
1964-08-01	75000000
1964-09-01	83000000
1964-10-01	108000000
1964-11-01	130000000
1964-12-01	154000000
1965-01-01	179000000
1965-02-01	204000000
1965-03-01	228000000
1965-04-01	254000000
1965-05-01	280000000
1965-06-01	311000000
1965-07-01	339000000
1965-08-01	356000000
1965-09-01	366000000
1965-10-01	382000000
1965-11-01	398000000
1965-12-01	421000000
1966-01-01	420000000
1966-02-01	439000000
1966-03-01	383000000
1966-04-01	360000000
1966-05-01	416000000
1966-06-01	358000000
1966-07-01	314000000
1966-08-01	316000000
1966-09-01	375120000
1966-10-01	377120000
1966-11-01	405120000
1966-12-01	380120000
1967-01-01	311120000
1967-02-01	327120000
1967-03-01	351120000
1967-04-01	317120000
1967-05-01	340120000
1967-06-01	228120000
1967-07-01	197120000
1967-08-01	169450000
1967-09-01	186500000
1967-10-01	197330000
1967-11-01	166340000
1967-12-01	154460000
1968-01-01	183460000
1968-02-01	198460000
1968-03-01	266340000
1968-04-01	303320000
1968-05-01	240320000
1968-06-01	166310000
1968-07-01	148330000
1968-08-01	216330000
1968-09-01	206330000
1968-10-01	225330000
1968-11-01	244330000
1968-12-01	212330000
1969-01-01	204330000
1969-02-01	223330000
1969-03-01	251330000
1969-04-01	282330000
1969-05-01	346330000
1969-06-01	331330000
1969-07-01	359310000
1969-08-01	423310000
1969-09-01	460310000
1969-10-01	517310000
1969-11-01	585310000
1969-12-01	611330000
1970-01-01	714130000
1970-02-01	799130000
1970-03-01	865130000
1970-04-01	890110000
1970-05-01	946110000
1970-06-01	968010000
1970-07-01	987010000
1970-08-01	1009780000
1970-09-01	1031780000
1970-10-01	1067160000
1970-11-01	1135660000
1970-12-01	1141660000
1971-01-01	1183740000
1971-02-01	1234720000
1971-03-01	1273720000
1971-04-01	1333050000
1971-05-01	1320120000
1971-06-01	1390120000
1971-07-01	1412720000
1971-08-01	1497720000
1971-09-01	1534720000
1971-10-01	1529750000
1971-11-01	1596750000
1971-12-01	1696186400
1972-01-01	1773824300
1972-02-01	1894824300
1972-03-01	2026694000
1972-04-01	2162748300
1972-05-01	2397748300
1972-06-01	2435748300
1972-07-01	2638748300
1972-08-01	2961748300
1972-09-01	3297748300
1972-10-01	3530748300
1972-11-01	3866748300
1972-12-01	4132748300
1973-01-01	4242748300
1973-02-01	4419718300
1973-03-01	4902718300
1973-04-01	5125790700
1973-05-01	5526899300
1973-06-01	5962899300
1973-07-01	6101911300
1973-08-01	6230911300
1973-09-01	6405911300
1973-10-01	6423911300
1973-11-01	6448911300
1973-12-01	6359911300
1974-01-01	5852911300
1974-02-01	6041911300
1974-03-01	6479911300
1974-04-01	6468971700
1974-05-01	6282092300
1974-06-01	6460092300
1974-07-01	6106167100
1974-08-01	6056140900
1974-09-01	5646362700
1974-10-01	5474576300
1974-11-01	5255885700
1974-12-01	5215752800
1975-01-01	4936813200
1975-02-01	4774810500
1975-03-01	4445207400
1975-04-01	4259968400
1975-05-01	4140660900
1975-06-01	3743763400
1975-07-01	3696059400
1975-08-01	3832944500
1975-09-01	3712587100
1975-10-01	3631602100
1975-11-01	3618474400
1975-12-01	3980374700
1976-01-01	3807839000
1976-02-01	3612835200
1976-03-01	3489365800
1976-04-01	3471802400
1976-05-01	3347697400
1976-06-01	3662878800
1976-07-01	3891924200
1976-08-01	4351865700
1976-09-01	4537295200
1976-10-01	4954070300
1976-11-01	5085841600
1976-12-01	6488040900
1977-01-01	6134914300
1977-02-01	5819635300
1977-03-01	5761685800
1977-04-01	5733152300
1977-05-01	5747809900
1977-06-01	5649255200
1977-07-01	6085149100
1977-08-01	6136594200
1977-09-01	5926142900
1977-10-01	5981620300
1977-11-01	5934754000
1977-12-01	7192021600
1978-01-01	6693159400
1978-02-01	6797021200
1978-03-01	7207344500
1978-04-01	7490437500
1978-05-01	7547648100
1978-06-01	8048060700
1978-07-01	8853987900
1978-08-01	9745175200
1978-09-01	9962477600
1978-10-01	10233280600
1978-11-01	11129780300
1978-12-01	11826399200
1979-01-01	11268935500
1979-02-01	11252435000
1979-03-01	11067494300
1979-04-01	11342537400
1979-05-01	10791927500
1979-06-01	10037854800
1979-07-01	10090460200
1979-08-01	9769175300
1979-09-01	9259884300
1979-10-01	9202525600
1979-11-01	8870619400
1979-12-01	8966257400
1980-01-01	7840603100
1980-02-01	7702640200
1980-03-01	6914543100
1980-04-01	6618089700
1980-05-01	5789305200
1980-06-01	5621641400
1980-07-01	6158661200
1980-08-01	5847046000
1980-09-01	5308365400
1980-10-01	5567763900
1980-11-01	4994988900
1980-12-01	5769329500
1981-01-01	5538765200
1981-02-01	5585218000
1981-03-01	5505581800
1981-04-01	5287255500
1981-05-01	5394706300
1981-06-01	5200732400
1981-07-01	5343163000
1981-08-01	5439507000
1981-09-01	5457765000
1981-10-01	5469476600
1981-11-01	5656722100
1981-12-01	6603517800
1982-01-01	6402612900
1982-02-01	6231381100
1982-03-01	6292719900
1982-04-01	6235550800
1982-05-01	6077873200
1982-06-01	6126880500
1982-07-01	6160435300
1982-08-01	6101163100
1982-09-01	4185379200
1982-10-01	3619231100
1982-11-01	3537189300
1982-12-01	3927907200
1983-01-01	3006574400
1983-02-01	3064000000
1983-03-01	3389334400
1983-04-01	3509554900
1983-05-01	3327118500
1983-06-01	3758117500
1983-07-01	3777010600
1983-08-01	4135010400
1983-09-01	3853010600
1983-10-01	3676248700
1983-11-01	4100547000
1983-12-01	4355083800
1984-01-01	4370395900
1984-02-01	5086144900
1984-03-01	5618000000
1984-04-01	6516795800
1984-05-01	6808978900
1984-06-01	7570969300
1984-07-01	7969912000
1984-08-01	8966301300
1984-09-01	9234278700
1984-10-01	9459275200
1984-11-01	10093930000
1984-12-01	11507921400
1985-01-01	9888306500
1985-02-01	9877986000
1985-03-01	10660000000
1985-04-01	10603374300
1985-05-01	10544012800
1985-06-01	10759018200
1985-07-01	11094722000
1985-08-01	11234464200
1985-09-01	10888521400
1985-10-01	10826550500
1985-11-01	10865579400
1985-12-01	10604582200
1986-01-01	9887169100
1986-02-01	9658161400
1986-03-01	10122828600
1986-04-01	10294010100
1986-05-01	10364726600
1986-06-01	10900373000
1986-07-01	9896882400
1986-08-01	9425060200
1986-09-01	9198756500
1986-10-01	8121028200
1986-11-01	7695912100
1986-12-01	7233512200
1987-01-01	5291289200
1987-02-01	4663969100
1987-03-01	4701192400
1987-04-01	4953419600
1987-05-01	5488807600
1987-06-01	5248717500
1987-07-01	6001038900
1987-08-01	6890251000
1987-09-01	6898492000
1987-10-01	6813173500
1987-11-01	7439278600
1987-12-01	6956784400
1988-01-01	6283955900
1988-02-01	6277040300
1988-03-01	5982946800
1988-04-01	6679783900
1988-05-01	7777670100
1988-06-01	6511639800
1988-07-01	6941818700
1988-08-01	8015573600
1988-09-01	8394874200
1988-10-01	8331190300
1988-11-01	8548137200
1988-12-01	7996130600
1989-01-01	8366530800
1989-02-01	8258430200
1989-03-01	9395657600
1989-04-01	8721687300
1989-05-01	7613823300
1989-06-01	7496224100
1989-07-01	8375421000
1989-08-01	9005008300
1989-09-01	8859332700
1989-10-01	9069132200
1989-11-01	8275200000
1989-12-01	8484900000
1990-01-01	7807710900
1990-02-01	7618075600
1990-03-01	6051145600
1990-04-01	7587957500
1990-05-01	8611554900
1990-06-01	8790725000
1990-07-01	9065463900
1990-08-01	8976167100
1990-09-01	8456509900
1990-10-01	8181757100
1990-11-01	7064457500
1990-12-01	8238526000
1991-01-01	8122646800
1991-02-01	8402679600
1991-03-01	7221195500
1991-04-01	7653225500
1991-05-01	8497925800
1991-06-01	9112624800
1991-07-01	8810259800
1991-08-01	7990509700
1991-09-01	6828904700
1991-10-01	7105695400
1991-11-01	7132102200
1991-12-01	8675945100
1992-01-01	10788793100
1992-02-01	13169429400
1992-03-01	15844499300
1992-04-01	17314210600
1992-05-01	19554555000
1992-06-01	21104643200
1992-07-01	22094088000
1992-08-01	22502296600
1992-09-01	21286075900
1992-10-01	23407238800
1992-11-01	23780003200
1992-12-01	23007500000
1993-01-01	22576869700
1993-02-01	22058432100
1993-03-01	21418748300
1993-04-01	21782713300
1993-05-01	23225313200
1993-06-01	23630251900
1993-07-01	24927916500
1993-08-01	26104195000
1993-09-01	25929504900
1993-10-01	27995481500
1993-11-01	29974783400
1993-12-01	31104569100
1994-01-01	34262280900
1994-02-01	35307669600
1994-03-01	36990976900
1994-04-01	37127781300
1994-05-01	40200281100
1994-06-01	41600134700
1994-07-01	41781026100
1994-08-01	41583884200
1994-09-01	41952100100
1994-10-01	41423514100
1994-11-01	40512236100
1994-12-01	37388537000
1995-01-01	36883842000
1995-02-01	36573815500
1995-03-01	32223851500
1995-04-01	30331826400
1995-05-01	32101049900
1995-06-01	31864242500
1995-07-01	40119229300
1995-08-01	45901913100
1995-09-01	46899921500
1995-10-01	47836914300
1995-11-01	49393008200
1995-12-01	50073008400
1996-01-01	51827984800
1996-02-01	54053104100
1996-03-01	53966006900
1996-04-01	55009764500
1996-05-01	57626903100
1996-06-01	58373965500
1996-07-01	57912164900
1996-08-01	57966875300
1996-09-01	57136789000
1996-10-01	56958821400
1996-11-01	58653948000
1996-12-01	58789943600
1997-01-01	57807796500
1997-02-01	58135169200
1997-03-01	57678169400
1997-04-01	54542070800
1997-05-01	57891307500
1997-06-01	56253329000
1997-07-01	59258322000
1997-08-01	62120500400
1997-09-01	60976501000
1997-10-01	52735042200
1997-11-01	51019509500
1997-12-01	51329504800
1998-01-01	52679019300
1998-02-01	57082405300
1998-03-01	67644429000
1998-04-01	73697190900
1998-05-01	71877942200
1998-06-01	70115957700
1998-07-01	68481742400
1998-08-01	66173370700
1998-09-01	44379378800
1998-10-01	40986599900
1998-11-01	39809403500
1998-12-01	43164752800
1999-01-01	33469976700
1999-02-01	32779625600
1999-03-01	31214976800
1999-04-01	41759834100
1999-05-01	41953179200
1999-06-01	39070568400
1999-07-01	39977416800
1999-08-01	39725847700
1999-09-01	41049690900
1999-10-01	38679971300
1999-11-01	40914943800
1999-12-01	35279324500
2000-01-01	36543298900
2000-02-01	37300474900
2000-03-01	38169949100
2000-04-01	27666379900
2000-05-01	27529365600
2000-06-01	27159513700
2000-07-01	28152672300
2000-08-01	30332865200
2000-09-01	30381862700
2000-10-01	29409890700
2000-11-01	31750773200
2000-12-01	32433984800
2001-01-01	35071989500
2001-02-01	35050920000
2001-03-01	34142095600
2001-04-01	34358562600
2001-05-01	35155180300
2001-06-01	37016350800
2001-07-01	35252113700
2001-08-01	35993739700
2001-09-01	39725602400
2001-10-01	37179911900
2001-11-01	36931535400
2001-12-01	35563040300
2002-01-01	35857524300
2002-02-01	35580313000
2002-03-01	36395828700
2002-04-01	32669092400
2002-05-01	32530074400
2002-06-01	41648754900
2002-07-01	38728100000
2002-08-01	37302988400
2002-09-01	38033141900
2002-10-01	35513415000
2002-11-01	35245840400
2002-12-01	37461991200
2003-01-01	38380269600
2003-02-01	38150835000
2003-03-01	41974087900
2003-04-01	41136384800
2003-05-01	42982516100
2003-06-01	47580424700
2003-07-01	47262671300
2003-08-01	47387191400
2003-09-01	52258878300
2003-10-01	53676448600
2003-11-01	53996839300
2003-12-01	48846596500
2004-01-01	52830224500
2004-02-01	52532171500
2004-03-01	51154580400
2004-04-01	50078420400
2004-05-01	50114932100
2004-06-01	49377239000
2004-07-01	49243327200
2004-08-01	49154671800
2004-09-01	49047286300
2004-10-01	48957094300
2004-11-01	49645929200
2004-12-01	52461784900
2005-01-01	53567280600
2005-02-01	58547088600
2005-03-01	61497784100
2005-04-01	61121441200
2005-05-01	60258704800
2005-06-01	59412536500
2005-07-01	54224354200
2005-08-01	54607903700
2005-09-01	56496927000
2005-10-01	59736783600
2005-11-01	63741632000
2005-12-01	53245209800
2006-01-01	56309373400
2006-02-01	56816326900
2006-03-01	59195870100
2006-04-01	55856388600
2006-05-01	62675528100
2006-06-01	62007831800
2006-07-01	66136153900
2006-08-01	70804295700
2006-09-01	72745643700
2006-10-01	77518708800
2006-11-01	82415422100
2006-12-01	85156183400
2007-01-01	90383436000
2007-02-01	100352253700
2007-03-01	108816522900
2007-04-01	121099021100
2007-05-01	135701448700
2007-06-01	146398325500
2007-07-01	155190618200
2007-08-01	160370567800
2007-09-01	162159549500
2007-10-01	167013775600
2007-11-01	176213158100
2007-12-01	179432865900
2008-01-01	186506509600
2008-02-01	191852156600
2008-03-01	194222833700
2008-04-01	194825570300
2008-05-01	196949001700
2008-06-01	199821610100
2008-07-01	202569298200
2008-08-01	204216472900
2008-09-01	205538620100
2008-10-01	196439634700
2008-11-01	193788385100
2008-12-01	192843633600
2009-01-01	187108201200
2009-02-01	185851842300
2009-03-01	189397593300
2009-04-01	189591604700
2009-05-01	194210014100
2009-06-01	200457738700
2009-07-01	206348568500
2009-08-01	214711660500
2009-09-01	220552823000
2009-10-01	229998937300
2009-11-01	235389873900
2009-12-01	237364463000
2010-01-01	239318268500
2010-02-01	239884956700
2010-03-01	242560990700
2010-04-01	246017665200
2010-05-01	248541300700
2010-06-01	251769466000
2010-07-01	256035889900
2010-08-01	259973445200
2010-09-01	273793371000
2010-10-01	283475112300
2010-11-01	283966248500
2010-12-01	286070398100
2011-01-01	295231798800
2011-02-01	304953569400
2011-03-01	315590789200
2011-04-01	326402635200
2011-05-01	331356738000
2011-06-01	334143734000
2011-07-01	344376974200
2011-08-01	351435588900
2011-09-01	347954484800
2011-10-01	351062698000
2011-11-01	350184963500
2011-12-01	350356057700
2012-01-01	353188575400
2012-02-01	354416927100
2012-03-01	363417862800
2012-04-01	372485854900
2012-05-01	370725255000
2012-06-01	372182348200
2012-07-01	374399461300
2012-08-01	375439741700
2012-09-01	376706504400
2012-10-01	374848892800
2012-11-01	374830473800
2012-12-01	369565972900
2013-01-01	369819103800
2013-02-01	370309665300
2013-03-01	373486488400
2013-04-01	375491250800
2013-05-01	371403486000
2013-06-01	366764447400
2013-07-01	369143387900
2013-08-01	363979362100
2013-09-01	365777654100
2013-10-01	361669081700
2013-11-01	359703931600
2013-12-01	356214152500
2014-01-01	358231207000
2014-02-01	359825670600
2014-03-01	361129701600
2014-04-01	363922791000
2014-05-01	366068590600
2014-06-01	370666001600
2014-07-01	374011283200
2014-08-01	376374978900
2014-09-01	372904870700
2014-10-01	373318166600
2014-11-01	372869934300
2014-12-01	360964732700
2015-01-01	359044930400
2015-02-01	359916484100
2015-03-01	360179502100
2015-04-01	361922914800
2015-05-01	364075749600
2015-06-01	366124812300
2015-07-01	365885964800
2015-08-01	365707840400
2015-09-01	358962367400
2015-10-01	358764985000
2015-11-01	354723577300
2015-12-01	354174890700
2016-01-01	355104671100
2016-02-01	356707313000
2016-03-01	355029824800
2016-04-01	359411289900
2016-05-01	360823068400
2016-06-01	361299933500
2016-07-01	366423966200
2016-08-01	366715226500
2016-09-01	367565449400
2016-10-01	364775495000
2016-11-01	363012372600
2016-12-01	362504946100
2017-01-01	365080073000
2017-02-01	366258610900
2017-03-01	367412241800
2017-04-01	372199595600
2017-05-01	373748018300
2017-06-01	374481685600
2017-07-01	378277476800
2017-08-01	378989982400
2017-09-01	378461933400
2017-10-01	377596903800
2017-11-01	378283255700
2017-12-01	371150619200
2018-01-01	372782427600
2018-02-01	374178508400
2018-03-01	376708757100
2018-04-01	377122828800
2018-05-01	379737501800
2018-06-01	376783113600
2018-07-01	376784274300
2018-08-01	378792107700
2018-09-01	378148616900