Month	US Dollars, monthly level
1988-01-01	385689925.21865505
1988-02-01	437501759.91890300
1988-03-01	459450528.16299600
1988-04-01	442506939.60544205
1988-05-01	410217133.87802900
1988-06-01	409348920.31464500
1988-07-01	408522490.48066500
1988-08-01	334725812.93262297
1988-09-01	386932043.04919000
1988-10-01	432268801.84513000
1988-11-01	505524266.09299093
1988-12-01	465253255.08993700
1989-01-01	400141855.43783500
1989-02-01	436613406.68170700
1989-03-01	480398728.89812200
1989-04-01	486795201.04258500
1989-05-01	455472866.85161495
1989-06-01	465545801.09418195
1989-07-01	423723041.13867396
1989-08-01	385764778.30066900
1989-09-01	433109794.89940800
1989-10-01	489335708.83176404
1989-11-01	514615003.52011704
1989-12-01	430124261.76063400
1990-01-01	507583446.09833100
1990-02-01	491852392.92266700
1990-03-01	547711864.40678000
1990-04-01	503348399.69981800
1990-05-01	532270094.51443400
1990-06-01	507012551.81777510
1990-07-01	523220171.83016000
1990-08-01	459423662.51578200
1990-09-01	487579612.89922700
1990-10-01	651093439.36381700
1990-11-01	608779666.21731510
1990-12-01	504446240.90541600
1991-01-01	587821087.86449410
1991-02-01	571594518.67797200
1991-03-01	563649123.65614200
1991-04-01	576726379.24630700
1991-05-01	555074089.17890200
1991-06-01	487085192.27261996
1991-07-01	516249222.63892704
1991-08-01	381532863.56896700
1991-09-01	509734624.61148700
1991-10-01	554198868.04378400
1991-11-01	512870380.62097400
1991-12-01	469292499.43475497
1992-01-01	565337561.46314690
1992-02-01	516347968.54325000
1992-03-01	556117941.00609100
1992-04-01	552441386.95666300
1992-05-01	514468393.64577204
1992-06-01	552789567.09622690
1992-07-01	572875614.76077200
1992-08-01	441341211.79897200
1992-09-01	608853923.99717090
1992-10-01	608317835.34588900
1992-11-01	509327088.71002300
1992-12-01	475184956.36966103
1993-01-01	434182762.53854900
1993-02-01	456771428.31841200
1993-03-01	597673012.54921600
1993-04-01	541448876.52250200
1993-05-01	480064723.74234100
1993-06-01	538479438.45675800
1993-07-01	486382366.97988800
1993-08-01	368249478.72153800
1993-09-01	533325293.10924107
1993-10-01	500845681.97309000
1993-11-01	503361822.73222000
1993-12-01	452592540.75991900
1994-01-01	487746972.28610000
1994-02-01	473186472.40420800
1994-03-01	593465424.93673710
1994-04-01	519488319.01987904
1994-05-01	502347748.09630203
1994-06-01	599178538.34629500
1994-07-01	509945181.12452805
1994-08-01	473666930.96783800
1994-09-01	636029561.49612000
1994-10-01	611745618.06939600
1994-11-01	616033781.88733300
1994-12-01	532695355.09419800
1995-01-01	623400967.65205000
1995-02-01	598022120.93077400
1995-03-01	732269381.57804200
1995-04-01	660238928.86675900
1995-05-01	684974507.92358600
1995-06-01	704627299.39794990
1995-07-01	650154798.76161000
1995-08-01	573780157.06435910
1995-09-01	686649207.69967000
1995-10-01	696244001.00169100
1995-11-01	678867661.64373710
1995-12-01	542869205.43781100
1996-01-01	624925140.73541810
1996-02-01	599048507.52462600
1996-03-01	669286414.82856400
1996-04-01	629814066.28941000
1996-05-01	598068456.63536200
1996-06-01	581787977.25168000
1996-07-01	613106733.61658300
1996-08-01	482337534.78474400
1996-09-01	614539917.67423300
1996-10-01	684241452.14311800
1996-11-01	607812484.95315000
1996-12-01	530449349.00960710
1997-01-01	582762353.42497190
1997-02-01	561093829.12537100
1997-03-01	583205932.36080000
1997-04-01	653502505.83939990
1997-05-01	570255565.18403790
1997-06-01	605513361.46272910
1997-07-01	579000743.69549000
1997-08-01	441021061.64202600
1997-09-01	613908626.42103500
1997-10-01	681244001.19148800
1997-11-01	635790979.87267400
1997-12-01	561319943.08141490
1998-01-01	610262375.73571400
1998-02-01	665154466.20125090
1998-03-01	707325808.12033300
1998-04-01	678551689.70424500
1998-05-01	639877416.23579400
1998-06-01	691720013.84142900
1998-07-01	663556974.01185390
1998-08-01	501046050.65001696
1998-09-01	707041049.03078700
1998-10-01	730766838.73375200
1998-11-01	715744477.37806200
1998-12-01	614569113.24755300
1999-01-01	629928766.93362590
1999-02-01	599632608.00652400
1999-03-01	724183846.11077700
1999-04-01	672238402.77206000
1999-05-01	648200622.60498200
1999-06-01	727451042.51055300
1999-07-01	720121975.78227900
1999-08-01	584377882.96639300
1999-09-01	720414996.93242190
1999-10-01	756883976.09571800
1999-11-01	732527667.06383300
1999-12-01	673923252.62749790
2000-01-01	696837867.72897210
2000-02-01	716851339.80627700
2000-03-01	852192006.34777600
2000-04-01	688600935.25441710
2000-05-01	762132380.46815410
2000-06-01	747779842.81490600
2000-07-01	650171664.56133700
2000-08-01	567843683.13112600
2000-09-01	677727037.42518700
2000-10-01	702774190.58707400
2000-11-01	722201324.18970690
2000-12-01	585949153.22023000
2001-01-01	763395387.29309390
2001-02-01	796125646.42781510
2001-03-01	923966496.13914610
2001-04-01	808311945.00398600
2001-05-01	807439192.19874500
2001-06-01	832962197.56417100
2001-07-01	807712517.21546300
2001-08-01	735887324.99303200
2001-09-01	804138333.45695900
2001-10-01	952757354.98049090
2001-11-01	848610123.81412300
2001-12-01	676048549.66140010
2002-01-01	761401471.46894600
2002-02-01	768898770.46578200
2002-03-01	912810599.41539400
2002-04-01	882958888.52204900
2002-05-01	845177512.57448400
2002-06-01	917134185.78711600
2002-07-01	890961096.36436900
2002-08-01	696355154.89863000
2002-09-01	873759257.58387100
2002-10-01	971079067.32525400
2002-11-01	937107377.45938600
2002-12-01	727957587.56705890
2003-01-01	879510552.85055400
2003-02-01	989547824.19526600
2003-03-01	1089332241.35404010
2003-04-01	1058550513.19805990
2003-05-01	1113638627.40054000
2003-06-01	1055928670.03261000
2003-07-01	1093260030.69404000
2003-08-01	852353719.59960210
2003-09-01	1228110416.21918000
2003-10-01	1422511478.03942000
2003-11-01	1321158133.76204000
2003-12-01	1228244042.87646000
2004-01-01	1147647184.70385000
2004-02-01	1262277218.81971000
2004-03-01	1411959641.93193000
2004-04-01	1275436259.65294000
2004-05-01	1250328089.52993000
2004-06-01	1304942986.61448000
2004-07-01	1312036345.79263000
2004-08-01	1154354732.05995000
2004-09-01	1398342569.63056000
2004-10-01	1582619962.09099000
2004-11-01	1627048574.17509980
2004-12-01	1536010512.09334020
2005-01-01	1418571400.70302990
2005-02-01	1408321656.79341000
2005-03-01	1568633281.65634000
2005-04-01	1533753412.66813000
2005-05-01	1495982079.19131020
2005-06-01	1473416966.17333000
2005-07-01	1434929786.22121000
2005-08-01	1342278232.14831000
2005-09-01	1533133286.82257000
2005-10-01	1853407478.31361000
2005-11-01	2227610411.87500000
2005-12-01	1778618575.52051000
2006-01-01	1848574185.07182000
2006-02-01	1943741574.47264000
2006-03-01	2181578175.86710020
2006-04-01	1918826867.05745000
2006-05-01	1921431882.13979000
2006-06-01	2050896947.39455000
2006-07-01	1797844962.03194020
2006-08-01	1733280440.22715000
2006-09-01	1786722893.95793000
2006-10-01	1994876038.70361000
2006-11-01	2037108907.33957980
2006-12-01	1782307907.68659000
2007-01-01	1846061777.38856980
2007-02-01	1801704344.86901000
2007-03-01	2043436684.39653000
2007-04-01	1780337974.66899010
2007-05-01	1873381943.33238980
2007-06-01	1777234088.31101010
2007-07-01	1860301184.05883000
2007-08-01	1702265197.55787000
2007-09-01	1864367827.30216000
2007-10-01	2242242306.07631000
2007-11-01	2356112795.27047000
2007-12-01	1805836269.82955000
2008-01-01	2210349741.34139000
2008-02-01	2098347838.53033970
2008-03-01	2205876905.52701040
2008-04-01	2352726465.35838000
2008-05-01	2211205432.93718000
2008-06-01	2113843419.00599980
2008-07-01	2485941353.79556000
2008-08-01	1944544095.66517000
2008-09-01	2396830779.26311970
2008-10-01	2360264327.35038000
2008-11-01	1763516092.10024000
2008-12-01	1523598522.99429000
2009-01-01	1582750890.14902000
2009-02-01	1572151412.28463000
2009-03-01	1858218244.32458000
2009-04-01	1824641421.11264010
2009-05-01	1630980417.66964000
2009-06-01	1516463356.37163020
2009-07-01	1924555923.06750000
2009-08-01	1524821683.30956000
2009-09-01	2136485233.74388030
2009-10-01	2005777777.77778000
2009-11-01	2047197493.41026000
2009-12-01	1691125047.51045010
2010-01-01	1410140787.59437000
2010-02-01	1358418280.08482980
2010-03-01	1841791044.77612020
2010-04-01	1954603019.97077010
2010-05-01	1260075431.03447990
2010-06-01	1398490314.70278000
2010-07-01	1460273176.40221000
2010-08-01	1333489653.55531000
2010-09-01	1674937522.31345990
2010-10-01	1806666666.66667000
2010-11-01	1781160138.82003000
2010-12-01	1550379179.59324000
2011-01-01	1615024878.15431000
2011-02-01	1671560259.47422000
2011-03-01	2006684133.56080990
2011-04-01	1792792234.61380000
2011-05-01	1750292854.35377000
2011-06-01	1650144054.47878000
2011-07-01	1665886674.37589000
2011-08-01	1697550791.47451000
2011-09-01	1847592847.31774020
2011-10-01	1556546452.37162000
2011-11-01	1963001788.24690000
2011-12-01	1633237719.61276000
2012-01-01	1802322580.64516000
2012-02-01	1776760163.88275980
2012-03-01	1753052770.60695000
2012-04-01	1549833949.49558000
2012-05-01	1412668928.31322000
2012-06-01	1511192693.40974000
2012-07-01	1328475711.89279990
2012-08-01	1206315392.08284000
2012-09-01	1406420896.86676000
2012-10-01	1787288422.47800000
2012-11-01	1989406754.94371000
2012-12-01	1360661374.00763000
2013-01-01	1543750000.00000000
2013-02-01	1371089320.25881980
2013-03-01	1419342502.92975000
2013-04-01	1450298975.78592000
2013-05-01	1485764596.84893000
2013-06-01	1469576290.62493000
2013-07-01	1451528620.66201000
2013-08-01	1277518482.83408000
2013-09-01	1453980055.22699000
2013-10-01	1841732046.67145000
2013-11-01	1888827154.74466000
2013-12-01	1785498269.24311000
2014-01-01	1640140441.31931000
2014-02-01	1657269052.37610000
2014-03-01	1649831494.63403990
2014-04-01	1590964446.86616000
2014-05-01	1587813499.24274000
2014-06-01	1534581293.03402000
2014-07-01	1644567313.43538000
2014-08-01	1247935865.33852000
2014-09-01	1515629315.29356000
2014-10-01	1764919809.43376000
2014-11-01	1783824659.83169000
2014-12-01	1490526757.56711000
2015-01-01	1421905014.62639000
2015-02-01	1346638457.44143000
2015-03-01	1467971915.19490000
2015-04-01	1440597982.21312000
2015-05-01	1379172365.85778000
2015-06-01	1439054321.16515020
2015-07-01	1366223327.91120000
2015-08-01	1183483641.70668000
2015-09-01	1355015926.93649000
2015-10-01	1664226287.47871000
2015-11-01	1505194206.50321000
2015-12-01	1579071196.40908000
2016-01-01	1233608736.01483000
2016-02-01	1392255389.93702000
2016-03-01	1401634180.16628000
2016-04-01	1457897837.63730000
2016-05-01	1424924645.63150000
2016-06-01	1457516750.32254980
2016-07-01	1308730557.42491000
2016-08-01	1221630708.88204000
2016-09-01	1332408530.94529000
2016-10-01	1273690771.10488990
2016-11-01	1220907698.90366000
2016-12-01	1085733803.50309000
2017-01-01	1364766114.36556000
2017-02-01	1165043582.67934000
2017-03-01	1385839728.89928000
2017-04-01	1171163304.47835000
2017-05-01	1343214346.48890000
2017-06-01	1345043814.71468000
2017-07-01	1321406709.71309000
2017-08-01	1239005221.62104000
2017-09-01	1391684596.19007000
2017-10-01	1450356716.92193000
2017-11-01	1396895467.65174000
2017-12-01	1178398865.65990000
2018-01-01	1383659838.20403980
2018-02-01	1374444489.69568000
2018-03-01	1563436129.52039000
2018-04-01	1393700249.09415980
2018-05-01	1408272878.21125980
2018-06-01	1492357215.97920010
2018-07-01	1354884147.81829000
2018-08-01	1278031217.91025000