Month	US Dollars, monthly level
1988-01-01	419157689.33461100
1988-02-01	462506687.69183100
1988-03-01	573914331.62026990
1988-04-01	495196536.48004900
1988-05-01	486749548.52092900
1988-06-01	506749395.33262200
1988-07-01	449317791.77312000
1988-08-01	418400948.20026404
1988-09-01	484597020.26069504
1988-10-01	497765663.29004400
1988-11-01	516635589.54170597
1988-12-01	508681596.96870196
1989-01-01	494720839.45041400
1989-02-01	480035231.94362900
1989-03-01	562682618.55174200
1989-04-01	524410032.32524600
1989-05-01	483949095.07243800
1989-06-01	528115272.49667900
1989-07-01	516157026.77406910
1989-08-01	449157085.84023400
1989-09-01	487884869.54819100
1989-10-01	559837108.67905300
1989-11-01	597168261.58379200
1989-12-01	536965894.22869500
1990-01-01	575186062.24627900
1990-02-01	563812697.76957300
1990-03-01	646214689.26553700
1990-04-01	592285791.21338700
1990-05-01	650092649.78381690
1990-06-01	597200756.86450100
1990-07-01	654950704.70504310
1990-08-01	571014779.78857700
1990-09-01	624846972.77277600
1990-10-01	803034357.95483500
1990-11-01	726089950.94119200
1990-12-01	612158447.85772000
1991-01-01	716818911.10661010
1991-02-01	668167379.83356500
1991-03-01	777274954.77618000
1991-04-01	711722522.21365100
1991-05-01	669266585.10059800
1991-06-01	606882997.74885700
1991-07-01	705097044.53430300
1991-08-01	517065354.36794597
1991-09-01	633229539.27447100
1991-10-01	729450972.50553000
1991-11-01	650685033.97493210
1991-12-01	670364760.94019600
1992-01-01	683945239.96076190
1992-02-01	650348202.57858910
1992-03-01	722063909.09250500
1992-04-01	682509118.89505800
1992-05-01	644650978.84121000
1992-06-01	683756462.69002200
1992-07-01	718333713.31791700
1992-08-01	584397561.55469300
1992-09-01	736933138.02454290
1992-10-01	765546009.37737400
1992-11-01	642995947.94240100
1992-12-01	708074763.25277290
1993-01-01	576656026.25836400
1993-02-01	616762454.65198990
1993-03-01	759677348.00112090
1993-04-01	687724703.11030200
1993-05-01	612875661.32756400
1993-06-01	643518423.06026900
1993-07-01	596023871.45790400
1993-08-01	503740120.76400300
1993-09-01	617403065.04828400
1993-10-01	604908040.85078690
1993-11-01	591205670.62424400
1993-12-01	886823875.16618800
1994-01-01	600242382.74941600
1994-02-01	609524075.60031800
1994-03-01	764604958.88634500
1994-04-01	680897186.21218190
1994-05-01	653910861.77889600
1994-06-01	738898502.72381000
1994-07-01	695051485.29520700
1994-08-01	655817929.53070000
1994-09-01	745177773.11332400
1994-10-01	771916040.67658010
1994-11-01	766462835.82418990
1994-12-01	740151545.57333100
1995-01-01	757593028.85224300
1995-02-01	752072826.32254900
1995-03-01	971383366.58182600
1995-04-01	840016186.63898500
1995-05-01	895085789.97840610
1995-06-01	874223105.90787100
1995-07-01	809296331.05921590
1995-08-01	728014527.27401400
1995-09-01	923741093.26810610
1995-10-01	836892424.53869000
1995-11-01	828320126.83727000
1995-12-01	793177404.37389200
1996-01-01	810276679.84189700
1996-02-01	813781701.19949100
1996-03-01	929484014.92861500
1996-04-01	822829426.03072000
1996-05-01	767514318.58737990
1996-06-01	836863226.83716200
1996-07-01	799504313.11960900
1996-08-01	653985922.40956000
1996-09-01	788998283.80453400
1996-10-01	851434833.01307000
1996-11-01	766996119.11648110
1996-12-01	816941376.48684000
1997-01-01	756142695.58959600
1997-02-01	739578962.59856810
1997-03-01	788981125.60545200
1997-04-01	788545706.05710200
1997-05-01	746579915.61660990
1997-06-01	779099859.35302400
1997-07-01	763166790.61591500
1997-08-01	763761928.41366600
1997-09-01	761266171.32748900
1997-10-01	803619694.84681690
1997-11-01	795395475.96290910
1997-12-01	963601056.43516000
1998-01-01	732432244.94805300
1998-02-01	828130134.73545800
1998-03-01	881670225.88903200
1998-04-01	852474948.80290900
1998-05-01	801874810.51139400
1998-06-01	859439205.84800400
1998-07-01	857719420.83098400
1998-08-01	664940886.60593900
1998-09-01	876510832.38312400
1998-10-01	954898284.95612410
1998-11-01	868640955.40135300
1998-12-01	1060733683.81306000
1999-01-01	794868655.97226390
1999-02-01	841906145.38460400
1999-03-01	1117570351.42332000
1999-04-01	872379433.36969600
1999-05-01	880634589.09737400
1999-06-01	889026117.14520800
1999-07-01	1030091121.72477980
1999-08-01	771963819.28313490
1999-09-01	861112014.28690800
1999-10-01	1050365229.24019990
1999-11-01	1082422455.73044010
1999-12-01	1002384946.02523000
2000-01-01	861950433.04249800
2000-02-01	909895212.00623700
2000-03-01	1080800642.18040000
2000-04-01	911483715.31410600
2000-05-01	997360664.60407300
2000-06-01	947118157.53023300
2000-07-01	900966913.25599500
2000-08-01	808815564.58724800
2000-09-01	924157400.51310710
2000-10-01	989892526.40622810
2000-11-01	975579758.89178700
2000-12-01	937212572.46517400
2001-01-01	933612560.72347000
2001-02-01	989974548.18503310
2001-03-01	1134499705.42358000
2001-04-01	1026030642.26512000
2001-05-01	1005866521.03000000
2001-06-01	1159126724.63252020
2001-07-01	1014184406.28078010
2001-08-01	1099861994.80756000
2001-09-01	938283062.25652000
2001-10-01	1063279744.73766000
2001-11-01	1004154594.32585010
2001-12-01	952325687.77424800
2002-01-01	891332258.16060900
2002-02-01	901851824.76328600
2002-03-01	1144936064.43527000
2002-04-01	1070422491.04646990
2002-05-01	1004939475.84223010
2002-06-01	992414182.05479000
2002-07-01	1053503976.70066000
2002-08-01	1074460355.57814000
2002-09-01	1029216369.12075010
2002-10-01	1148094086.87711000
2002-11-01	1320824603.09501000
2002-12-01	1008505473.95939990
2003-01-01	1090588832.06810000
2003-02-01	1206776156.88438990
2003-03-01	1324294719.25235990
2003-04-01	1461295394.22074000
2003-05-01	1491986503.93037990
2003-06-01	1320844461.47536020
2003-07-01	1294587213.22071980
2003-08-01	1099084757.07166000
2003-09-01	1406834695.99888000
2003-10-01	1539630575.71317000
2003-11-01	1465870355.06547000
2003-12-01	1489708630.35572000
2004-01-01	1369153939.63241000
2004-02-01	1612909779.60295990
2004-03-01	1763018300.62503000
2004-04-01	1796240398.78881000
2004-05-01	1554621042.14132000
2004-06-01	1571835533.77441000
2004-07-01	1589551837.94412000
2004-08-01	1447789291.15470980
2004-09-01	1712074058.10412000
2004-10-01	1642788980.99996020
2004-11-01	2088725881.68987000
2004-12-01	1909884861.19414000
2005-01-01	1652050345.77762000
2005-02-01	1809024405.50274000
2005-03-01	1912327778.72092000
2005-04-01	1859891173.18822000
2005-05-01	1764335595.60100000
2005-06-01	1732237487.70658000
2005-07-01	1685310514.72634000
2005-08-01	1547099219.02861000
2005-09-01	1841082349.70562980
2005-10-01	1978395494.79753000
2005-11-01	2717052555.52606000
2005-12-01	2006920286.38782020
2006-01-01	2070209202.08239000
2006-02-01	2226348227.22306000
2006-03-01	2463343801.40511000
2006-04-01	2410109429.19212000
2006-05-01	2399905845.47793000
2006-06-01	2177772216.96850000
2006-07-01	2109205714.06981020
2006-08-01	2015755190.46373000
2006-09-01	2146690512.34583020
2006-10-01	2240622552.29779000
2006-11-01	2459895367.48092000
2006-12-01	2407910653.71994000
2007-01-01	2119200917.83176020
2007-02-01	2247419408.68539000
2007-03-01	2491924862.87557030
2007-04-01	2271153565.95541000
2007-05-01	2340714133.00401000
2007-06-01	2081515462.69369000
2007-07-01	2227807037.02642970
2007-08-01	2233048320.84824000
2007-09-01	2308132442.21739000
2007-10-01	2667838621.43830000
2007-11-01	2752299353.58735000
2007-12-01	2311825710.05353000
2008-01-01	2582002769.80630000
2008-02-01	2531132080.22723000
2008-03-01	2850189205.49442960
2008-04-01	2959566767.69349000
2008-05-01	2909366157.32880000
2008-06-01	2661825049.99629970
2008-07-01	3337332145.79337000
2008-08-01	2445142002.98954000
2008-09-01	2674431040.10433000
2008-10-01	2614728458.47521000
2008-11-01	2427299325.78552000
2008-12-01	2147163477.67707000
2009-01-01	1946195437.16207000
2009-02-01	1901492346.12182000
2009-03-01	2188394286.05299000
2009-04-01	2251227269.99939970
2009-05-01	2071856092.64199000
2009-06-01	1973182151.16094000
2009-07-01	2109530809.75132010
2009-08-01	1665049928.67332000
2009-09-01	2182227519.53384000
2009-10-01	2259703703.70370000
2009-11-01	2389913960.31233020
2009-12-01	2335259090.33321000
2010-01-01	1877188328.91247000
2010-02-01	1783266060.06704000
2010-03-01	2321438263.22931000
2010-04-01	2085740379.93181000
2010-05-01	2366020114.94253000
2010-06-01	1920863628.79503000
2010-07-01	1825852949.72391990
2010-08-01	1717416026.73076000
2010-09-01	2055480185.64797970
2010-10-01	2229583333.33333000
2010-11-01	2220314823.99603030
2010-12-01	2390514765.02356000
2011-01-01	1974988229.00627000
2011-02-01	2149948787.98224970
2011-03-01	2577620034.12138000
2011-04-01	2313672036.34862000
2011-05-01	2430652089.02772000
2011-06-01	2386550550.02619030
2011-07-01	2317413781.37542000
2011-08-01	2755527857.40995000
2011-09-01	2360660247.59285000
2011-10-01	2906330850.64680000
2011-11-01	2381784547.08021970
2011-12-01	2302282777.57858000
2012-01-01	2092258064.51613000
2012-02-01	2305168610.14812000
2012-03-01	2632154649.69682000
2012-04-01	2167504229.58832000
2012-05-01	2414737778.76648000
2012-06-01	2092854584.52722000
2012-07-01	2006901172.52931000
2012-08-01	1788447848.12856980
2012-09-01	2519204786.72071030
2012-10-01	2465194087.11351970
2012-11-01	2701265822.78481000
2012-12-01	2149621804.08827000
2013-01-01	2188962765.95745000
2013-02-01	1935294510.03936000
2013-03-01	2424073274.53278000
2013-04-01	2071706826.12042000
2013-05-01	2455125115.84801000
2013-06-01	2050921055.75372980
2013-07-01	2039646848.17053000
2013-08-01	1777741196.74838000
2013-09-01	2578104738.02780000
2013-10-01	2321537350.97837000
2013-11-01	2552472773.63659000
2013-12-01	2271580267.93873020
2014-01-01	2130547882.24535010
2014-02-01	2241898144.98473000
2014-03-01	2426694568.71450000
2014-04-01	2255109240.70117000
2014-05-01	2115207655.20608000
2014-06-01	2119021847.49480000
2014-07-01	2560170792.60503000
2014-08-01	1722686837.47936000
2014-09-01	2060399304.09982000
2014-10-01	2490734526.41115000
2014-11-01	2214712841.04182000
2014-12-01	2324192433.71835000
2015-01-01	1776014834.65889000
2015-02-01	1790218303.51718000
2015-03-01	2440201785.78453000
2015-04-01	1950609248.94362000
2015-05-01	1834023612.98426990
2015-06-01	1954332228.52546000
2015-07-01	1862051478.32743000
2015-08-01	1581094963.01746000
2015-09-01	2149807535.70749000
2015-10-01	2115859809.91590000
2015-11-01	1977657943.54450000
2015-12-01	1861176517.36997990
2016-01-01	1577947327.88107010
2016-02-01	1807802701.23971990
2016-03-01	1914587327.40992020
2016-04-01	1865805314.45602000
2016-05-01	1831997525.35534000
2016-06-01	1935680190.99171020
2016-07-01	1747738610.90837980
2016-08-01	1591482207.90137000
2016-09-01	1873937747.07334000
2016-10-01	2172468498.86837960
2016-11-01	1779942426.65523000
2016-12-01	1669070689.77658990
2017-01-01	1626472958.63443000
2017-02-01	1846568529.34538980
2017-03-01	2079614917.97716000
2017-04-01	1680192383.20643000
2017-05-01	2022616121.05258000
2017-06-01	1997060292.60201000
2017-07-01	1788598621.72461990
2017-08-01	1721851107.79709980
2017-09-01	1940591779.21189000
2017-10-01	2012725539.56372980
2017-11-01	2043214979.28585980
2017-12-01	1906069925.05897020
2018-01-01	2066769468.33016000
2018-02-01	1960159991.90414000
2018-03-01	2262666909.52908000
2018-04-01	2029319837.95732000
2018-05-01	2060115529.80243020
2018-06-01	2017601563.19942000
2018-07-01	1889125659.14431000
2018-08-01	1717823634.12228000