Month	Dollars
1950-12-01	445000000
1951-12-01	253000000
1952-12-01	133000000
1953-12-01	160000000
1954-12-01	152000000
1955-12-01	85000000
1956-12-01	158000000
1957-01-01	217500000
1957-02-01	222500000
1957-03-01	243500000
1957-04-01	277000000
1957-05-01	280000000
1957-06-01	242000000
1957-07-01	238000000
1957-08-01	225000000
1957-09-01	206000000
1957-10-01	187000000
1957-11-01	168000000
1957-12-01	160000000
1958-01-01	50000000
1958-02-01	95000000
1958-03-01	85000000
1958-04-01	50000000
1958-05-01	34000000
1958-06-01	27000000
1958-07-01	45000000
1958-08-01	35000000
1958-09-01	31000000
1958-10-01	27000000
1958-11-01	30000000
1958-12-01	38000000
1959-01-01	41000000
1959-02-01	59000000
1959-03-01	48000000
1959-04-01	39000000
1959-05-01	61000000
1959-06-01	44000000
1959-07-01	56000000
1959-08-01	88000000
1959-09-01	126000000
1959-10-01	162000000
1959-11-01	186000000
1959-12-01	220000000
1960-01-01	257000000
1960-02-01	301000000
1960-03-01	341000000
1960-04-01	353000000
1960-05-01	390000000
1960-06-01	400000000
1960-07-01	424000000
1960-08-01	428000000
1960-09-01	452000000
1960-10-01	428000000
1960-11-01	435000000
1960-12-01	422000000
1961-01-01	402000000
1961-02-01	414000000
1961-03-01	401000000
1961-04-01	372000000
1961-05-01	350000000
1961-06-01	313000000
1961-07-01	302000000
1961-08-01	306000000
1961-09-01	287000000
1961-10-01	242000000
1961-11-01	208000000
1961-12-01	196000000
1962-01-01	134000000
1962-02-01	117000000
1962-03-01	125000000
1962-04-01	64000000
1962-05-01	63000000
1962-06-01	88000000
1962-07-01	92000000
1962-08-01	79000000
1962-09-01	97000000
1962-10-01	53000000
1962-11-01	59000000
1962-12-01	54000000
1963-01-01	51000000
1963-02-01	71000000
1963-03-01	87000000
1963-04-01	122000000
1963-05-01	126000000
1963-06-01	123000000
1963-07-01	176000000
1963-08-01	205000000
1963-09-01	221000000
1963-10-01	195000000
1963-11-01	167000000
1963-12-01	192000000
1964-01-01	197000000
1964-02-01	203000000
1964-03-01	200000000
1964-04-01	219000000
1964-05-01	247000000
1964-06-01	170000000
1964-07-01	163000000
1964-08-01	118000000
1964-09-01	125000000
1964-10-01	113000000
1964-11-01	98000000
1964-12-01	82000000
1965-01-01	55000000
1965-02-01	44000000
1965-03-01	42000000
1965-04-01	53000000
1965-05-01	85000000
1965-06-01	49000000
1965-07-01	62000000
1965-08-01	94000000
1965-09-01	131000000
1965-10-01	144000000
1965-11-01	133000000
1965-12-01	170000000
1966-01-01	189000000
1966-02-01	194000000
1966-03-01	215000000
1966-04-01	228000000
1966-05-01	254000000
1966-06-01	220000000
1966-07-01	199000000
1966-08-01	216000000
1966-09-01	186000000
1966-10-01	146000000
1966-11-01	134000000
1966-12-01	132000000
1967-01-01	132000000
1967-02-01	116000000
1967-03-01	172000000
1967-04-01	248000000
1967-05-01	357000000
1967-06-01	586000000
1967-07-01	616000000
1967-08-01	613000000
1967-09-01	616010000
1967-10-01	596010000
1967-11-01	603010000
1967-12-01	643010000
1968-01-01	601010000
1968-02-01	582010000
1968-03-01	604510000
1968-04-01	617520000
1968-05-01	635520000
1968-06-01	636520000
1968-07-01	638580000
1968-08-01	616150000
1968-09-01	624150000
1968-10-01	631650000
1968-11-01	652650000
1968-12-01	650650000
1969-01-01	677640000
1969-02-01	697650000
1969-03-01	705650000
1969-04-01	754650000
1969-05-01	697660000
1969-06-01	611660000
1969-07-01	671660000
1969-08-01	633670000
1969-09-01	560670000
1969-10-01	493780000
1969-11-01	447780000
1969-12-01	402790000
1970-01-01	423590000
1970-02-01	422590000
1970-03-01	468590000
1970-04-01	495570000
1970-05-01	540910000
1970-06-01	566910000
1970-07-01	638910000
1970-08-01	631860000
1970-09-01	565860000
1970-10-01	604070000
1970-11-01	545070000
1970-12-01	532570000
1971-01-01	531650000
1971-02-01	513650000
1971-03-01	469650000
1971-04-01	442640000
1971-05-01	432930000
1971-06-01	381930000
1971-07-01	375930000
1971-08-01	358930000
1971-09-01	318930000
1971-10-01	235020000
1971-11-01	185780000
1971-12-01	192447200
1972-01-01	160513500
1972-02-01	132884900
1972-03-01	201680100
1972-04-01	150550900
1972-05-01	97605200
1972-06-01	111722400
1972-07-01	91722400
1972-08-01	80944600
1972-09-01	102944600
1972-10-01	90944600
1972-11-01	170304100
1972-12-01	313304100
1973-01-01	423790500
1973-02-01	489433400
1973-03-01	476383900
1973-04-01	549236600
1973-05-01	615321100
1973-06-01	648321100
1973-07-01	822430900
1973-08-01	940381400
1973-09-01	1060443000
1973-10-01	1045443000
1973-11-01	1030418800
1973-12-01	1148704500
1974-01-01	1145736200
1974-02-01	1197736200
1974-03-01	1291505800
1974-04-01	1410205400
1974-05-01	1593842300
1974-06-01	1684874000
1974-07-01	1658619300
1974-08-01	1460609700
1974-09-01	1353171600
1974-10-01	1280921000
1974-11-01	1164668800
1974-12-01	1144325500
1975-01-01	1006707500
1975-02-01	881198100
1975-03-01	743926100
1975-04-01	582463700
1975-05-01	425810200
1975-06-01	410547000
1975-07-01	359453400
1975-08-01	256733000
1975-09-01	178699800
1975-10-01	255731200
1975-11-01	281264700
1975-12-01	287785700
1976-01-01	232656700
1976-02-01	158656700
1976-03-01	258983600
1976-04-01	289296900
1976-05-01	528003000
1976-06-01	612166500
1976-07-01	681759300
1976-08-01	797798000
1976-09-01	767606900
1976-10-01	733404200
1976-11-01	643987800
1976-12-01	1444855200
1977-01-01	1379111900
1977-02-01	1481400400
1977-03-01	1539167000
1977-04-01	1651808400
1977-05-01	1812355000
1977-06-01	1847124800
1977-07-01	2066498200
1977-08-01	2294898300
1977-09-01	2533998900
1977-10-01	2818543400
1977-11-01	2878507300
1977-12-01	3153791600
1978-01-01	3717319400
1978-02-01	4107086200
1978-03-01	4212803900
1978-04-01	4385645400
1978-05-01	4962390500
1978-06-01	4791372800
1978-07-01	5136585200
1978-08-01	5287250300
1978-09-01	5344238500
1978-10-01	5142967500
1978-11-01	4749806400
1978-12-01	4966494500
1979-01-01	5255943900
1979-02-01	5467264400
1979-03-01	5871434700
1979-04-01	6346370700
1979-05-01	6849038200
1979-06-01	7523459900
1979-07-01	7807892300
1979-08-01	8063318600
1979-09-01	8730337300
1979-10-01	9175448700
1979-11-01	9391699800
1979-12-01	9388041800
1980-01-01	9669607800
1980-02-01	9729897000
1980-03-01	9493471100
1980-04-01	9033799900
1980-05-01	8268079700
1980-06-01	8141532400
1980-07-01	9139358200
1980-08-01	9458079900
1980-09-01	8444592000
1980-10-01	7803580800
1980-11-01	7027883900
1980-12-01	6719462100
1981-01-01	5697127500
1981-02-01	4538258400
1981-03-01	3756048200
1981-04-01	5202660900
1981-05-01	4108531900
1981-06-01	3817928500
1981-07-01	3673801900
1981-08-01	3751210400
1981-09-01	3816213400
1981-10-01	3472863000
1981-11-01	3320186000
1981-12-01	3268356800
1982-01-01	3393910900
1982-02-01	3484141500
1982-03-01	3228107700
1982-04-01	2805955900
1982-05-01	3045011200
1982-06-01	2937879000
1982-07-01	3150785900
1982-08-01	2680513800
1982-09-01	2978356700
1982-10-01	3073057300
1982-11-01	2940586000
1982-12-01	2506393800
1983-01-01	3314561800
1983-02-01	3859104200
1983-03-01	3365792800
1983-04-01	3142639400
1983-05-01	2824403200
1983-06-01	3177333200
1983-07-01	3131952900
1983-08-01	2701031300
1983-09-01	2350031700
1983-10-01	2378880400
1983-11-01	2453357200
1983-12-01	1172356000
1984-01-01	1572871100
1984-02-01	1599063600
1984-03-01	1472063900
1984-04-01	1717931900
1984-05-01	1953156200
1984-06-01	1740154700
1984-07-01	1197235500
1984-08-01	1352549000
1984-09-01	1352539500
1984-10-01	1488102700
1984-11-01	1241623300
1984-12-01	1242617500
1985-01-01	1194214500
1985-02-01	860335800
1985-03-01	813346900
1985-04-01	954941000
1985-05-01	1223327700
1985-06-01	1713329400
1985-07-01	2006062900
1985-08-01	1916362400
1985-09-01	2919752200
1985-10-01	3054931800
1985-11-01	3318295200
1985-12-01	3273000000
1986-01-01	3183356800
1986-02-01	2943728200
1986-03-01	2701522900
1986-04-01	3333617600
1986-05-01	3472144700
1986-06-01	4198673100
1986-07-01	4023313100
1986-08-01	3871334400
1986-09-01	3775363300
1986-10-01	3499083000
1986-11-01	2957000000
1986-12-01	2718000000
1987-01-01	2518740300
1987-02-01	2171336200
1987-03-01	2594409700
1987-04-01	1999402100
1987-05-01	1877476000
1987-06-01	1490543300
1987-07-01	1519500800
1987-08-01	1396543100
1987-09-01	1030537400
1987-10-01	1440362000
1987-11-01	1690000000
1987-12-01	1617000000
1988-01-01	1399000000
1988-02-01	1266000000
1988-03-01	1467679800
1988-04-01	1537021200
1988-05-01	1489206300
1988-06-01	1857768000
1988-07-01	1899865700
1988-08-01	2742069200
1988-09-01	3040071000
1988-10-01	2890305800
1988-11-01	2981464600
1988-12-01	3363457500
1989-01-01	3208821500
1989-02-01	2204488700
1989-03-01	1610412700
1989-04-01	1294342800
1989-05-01	1472000000
1989-06-01	936000000
1989-07-01	1653000000
1989-08-01	1949000000
1989-09-01	2267000000
1989-10-01	2341278700
1989-11-01	1870296200
1989-12-01	1463302300
1990-01-01	1325458900
1990-02-01	982147200
1990-03-01	1215109000
1990-04-01	1648084200
1990-05-01	2349505900
1990-06-01	2950230000
1990-07-01	2786546600
1990-08-01	2732830600
1990-09-01	3257124400
1990-10-01	3263161800
1990-11-01	3789685000
1990-12-01	4592335400
1991-01-01	4118054000
1991-02-01	3562314700
1991-03-01	2353723000
1991-04-01	2440722200
1991-05-01	2978953600
1991-06-01	3257212400
1991-07-01	3487493400
1991-08-01	3336083100
1991-09-01	4211467900
1991-10-01	4201840000
1991-11-01	4809807500
1991-12-01	6004650800
1992-01-01	6039533600
1992-02-01	5823758600
1992-03-01	6514247200
1992-04-01	7073028800
1992-05-01	7788181500
1992-06-01	7892025500
1992-07-01	8526391700
1992-08-01	8687164000
1992-09-01	8693940200
1992-10-01	9010685400
1992-11-01	8604055400
1992-12-01	9989728900
1993-01-01	10288846800
1993-02-01	10452389900
1993-03-01	10502975100
1993-04-01	9966322000
1993-05-01	9964415700
1993-06-01	9940667800
1993-07-01	11243573600
1993-08-01	12682469900
1993-09-01	11658881200
1993-10-01	11830774600
1993-11-01	11963021200
1993-12-01	13791118800
1994-01-01	13810361100
1994-02-01	13661632900
1994-03-01	13226980100
1994-04-01	12829249900
1994-05-01	13165485700
1994-06-01	13246937700
1994-07-01	13810997000
1994-08-01	13586251300
1994-09-01	13068943800
1994-10-01	12986532100
1994-11-01	12930531900
1994-12-01	14326930200
1995-01-01	12049329700
1995-02-01	11348994700
1995-03-01	8450164200
1995-04-01	9755617600
1995-05-01	9148978000
1995-06-01	10843701200
1995-07-01	11046157800
1995-08-01	9578646800
1995-09-01	11176274700
1995-10-01	10533105600
1995-11-01	10555507100
1995-12-01	14287809200
1996-01-01	13026412100
1996-02-01	13777729200
1996-03-01	14422367300
1996-04-01	13869254300
1996-05-01	14012007000
1996-06-01	15653957700
1996-07-01	14350002900
1996-08-01	14617527800
1996-09-01	15192801000
1996-10-01	14007196200
1996-11-01	14889751700
1996-12-01	18103917800
1997-01-01	17600682000
1997-02-01	18735794000
1997-03-01	17438243800
1997-04-01	17287522900
1997-05-01	19114900300
1997-06-01	19740100000
1997-07-01	19644104900
1997-08-01	19832407000
1997-09-01	19364184700
1997-10-01	19604330300
1997-11-01	19955747900
1997-12-01	22319837900
1998-01-01	21079708100
1998-02-01	21510505200
1998-03-01	21055145600
1998-04-01	21272928700
1998-05-01	22370071600
1998-06-01	22768981700
1998-07-01	22497532200
1998-08-01	24361319400
1998-09-01	23966574200
1998-10-01	22717063300
1998-11-01	22938193100
1998-12-01	24752133200
1999-01-01	23862907300
1999-02-01	24113706000
1999-03-01	24371447300
1999-04-01	23694369600
1999-05-01	23378306600
1999-06-01	22980857800
1999-07-01	24167287400
1999-08-01	23957896000
1999-09-01	21763480500
1999-10-01	22397540900
1999-11-01	24491656600
1999-12-01	26252059200
2000-01-01	24290100700
2000-02-01	24652360900
2000-03-01	24574341800
2000-04-01	24672732800
2000-05-01	23542274800
2000-06-01	25678578700
2000-07-01	26110677600
2000-08-01	24633977700
2000-09-01	24867554400
2000-10-01	23246974200
2000-11-01	22438712100
2000-12-01	25146906500
2001-01-01	25436400400
2001-02-01	25366021300
2001-03-01	21919370600
2001-04-01	20540429600
2001-05-01	20201980300
2001-06-01	21077480000
2001-07-01	16699037000
2001-08-01	14399383100
2001-09-01	20555207600
2001-10-01	18056371600
2001-11-01	14723274000
2001-12-01	14553064200
2002-01-01	13752345200
2002-02-01	13902561100
2002-03-01	12816768400
2002-04-01	12220567200
2002-05-01	10208586500
2002-06-01	9647292000
2002-07-01	9001935700
2002-08-01	9121488400
2002-09-01	9416356500
2002-10-01	9894287300
2002-11-01	10041316500
2002-12-01	10489340300
2003-01-01	9330813100
2003-02-01	10293454100
2003-03-01	10539021100
2003-04-01	10998770900
2003-05-01	11385786700
2003-06-01	12183420700
2003-07-01	13484161800
2003-08-01	13597009800
2003-09-01	13418138900
2003-10-01	12914634400
2003-11-01	13513980300
2003-12-01	14153441200
2004-01-01	14697429200
2004-02-01	14670626100
2004-03-01	14627452200
2004-04-01	15364390300
2004-05-01	16181483100
2004-06-01	16926107400
2004-07-01	17415384400
2004-08-01	17359317900
2004-09-01	17500756700
2004-10-01	17854598000
2004-11-01	18181368700
2004-12-01	18884345500
2005-01-01	19404501300
2005-02-01	20031538700
2005-03-01	19586585500
2005-04-01	20140979100
2005-05-01	21378426100
2005-06-01	22284561000
2005-07-01	24349912800
2005-08-01	24487648300
2005-09-01	24783317300
2005-10-01	25730691300
2005-11-01	25649835400
2005-12-01	27178838500
2006-01-01	18674882900
2006-02-01	19543389200
2006-03-01	20524606100
2006-04-01	21241540300
2006-05-01	23026635500
2006-06-01	24411293200
2006-07-01	25105319000
2006-08-01	26267552200
2006-09-01	26957383700
2006-10-01	27983391300
2006-11-01	29180041700
2006-12-01	30903462200
2007-01-01	32575626300
2007-02-01	33740137500
2007-03-01	35650934200
2007-04-01	37399159800
2007-05-01	39408582600
2007-06-01	41976540500
2007-07-01	42990665300
2007-08-01	41955173300
2007-09-01	41571292600
2007-10-01	41593372800
2007-11-01	43486647900
2007-12-01	44682058500
2008-01-01	46013065500
2008-02-01	47535230100
2008-03-01	48806255600
2008-04-01	48664630600
2008-05-01	46974408300
2008-06-01	45850763500
2008-07-01	45886960900
2008-08-01	45539351800
2008-09-01	45517003300
2008-10-01	43467614900
2008-11-01	44540119600
2008-12-01	44854617900
2009-01-01	45469194200
2009-02-01	45447586100
2009-03-01	44930608600
2009-04-01	44801608200
2009-05-01	44911549500
2009-06-01	44401172300
2009-07-01	44482855900
2009-08-01	45834656200
2009-09-01	46315531700
2009-10-01	47098617900
2009-11-01	47733984400
2009-12-01	46092987600
2010-01-01	46258323800
2010-02-01	45830017300
2010-03-01	45497806500
2010-04-01	46061415000
2010-05-01	46846391600
2010-06-01	47257419500
2010-07-01	49230908000
2010-08-01	48351300300
2010-09-01	49132582800
2010-10-01	49810544600
2010-11-01	49551213300
2010-12-01	49733860100
2011-01-01	50276976300
2011-02-01	49884342300
2011-03-01	48827598000
2011-04-01	49258564400
2011-05-01	49408992700
2011-06-01	49047192800
2011-07-01	49056300100
2011-08-01	46808133000
2011-09-01	45367025000
2011-10-01	44095407400
2011-11-01	42582345500
2011-12-01	43226839500
2012-01-01	43136794600
2012-02-01	43221623200
2012-03-01	43964397300
2012-04-01	44538440200
2012-05-01	43862937400
2012-06-01	43156285900
2012-07-01	43604587500
2012-08-01	41801130200
2012-09-01	41500334700
2012-10-01	41865061200
2012-11-01	41799949200
2012-12-01	39920302200
2013-01-01	39169384600
2013-02-01	38435316400
2013-03-01	37232949600
2013-04-01	36575788600
2013-05-01	35768086900
2013-06-01	34540361200
2013-07-01	34410902500
2013-08-01	33800592900
2013-09-01	32069085700
2013-10-01	30573593200
2013-11-01	28249125400
2013-12-01	28143040300
2014-01-01	25244370500
2014-02-01	24884464200
2014-03-01	24424022800
2014-04-01	25613424400
2014-05-01	26055121400
2014-06-01	26603876500
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2014-08-01	26018769300
2014-09-01	25449143200
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2014-11-01	26560248100
2014-12-01	29016965000
2015-01-01	28899571800
2015-02-01	29023026800
2015-03-01	29113708400
2015-04-01	31529455900
2015-05-01	30905366400
2015-06-01	31501317800
2015-07-01	31727666900
2015-08-01	31325514600
2015-09-01	31021364600
2015-10-01	24670157200
2015-11-01	23463487300
2015-12-01	23416509700
2016-01-01	27860981100
2016-02-01	25951451700
2016-03-01	27093731900
2016-04-01	31801581000
2016-05-01	27735368200
2016-06-01	27897713200
2016-07-01	29856610500
2016-08-01	28547894800
2016-09-01	27326815300
2016-10-01	34814163800
2016-11-01	34927173100
2016-12-01	36323296400
2017-01-01	44547210400
2017-02-01	48369990900
2017-03-01	48573457600
2017-04-01	45596741500
2017-05-01	43783814800
2017-06-01	45452644000
2017-07-01	44974839800
2017-08-01	46636523200
2017-09-01	47622173600
2017-10-01	49251174900
2017-11-01	52411728600
2017-12-01	53030809500
2018-01-01	59727848000
2018-02-01	59292008900
2018-03-01	59691431100
2018-04-01	53722711800
2018-05-01	47589846400
2018-06-01	59268250700
2018-07-01	55501076700
2018-08-01	50253506200
2018-09-01	46531843600
2018-10-01	51509982000