Month	US Dollars, monthly level
1991-01-01	355845651.87776804
1991-02-01	537072381.85718800
1991-03-01	750034798.31407700
1991-04-01	673305128.40306000
1991-05-01	626848822.80145000
1991-06-01	715653817.96975900
1991-07-01	617042487.68821100
1991-08-01	563502908.99133800
1991-09-01	676216938.48958600
1991-10-01	728347630.85327510
1991-11-01	816491408.14873600
1991-12-01	848888476.27810910
1992-01-01	611404942.25963200
1992-02-01	695782079.84743000
1992-03-01	756505064.00168500
1992-04-01	713672411.86006400
1992-05-01	727485444.96892100
1992-06-01	801455208.17108600
1992-07-01	738875718.95340200
1992-08-01	648812711.33044500
1992-09-01	785841720.81667600
1992-10-01	811769918.20009400
1992-11-01	734566383.91272800
1992-12-01	753370551.55604410
1993-01-01	862137214.64913600
1993-02-01	1104184353.62483000
1993-03-01	1521299759.20145000
1993-04-01	1235393182.59880000
1993-05-01	1244529885.76197000
1993-06-01	1281099197.48372000
1993-07-01	1062980580.39583020
1993-08-01	1034180978.26228000
1993-09-01	1252443139.51031000
1993-10-01	1240300692.58171990
1993-11-01	1393322316.88983000
1993-12-01	1232284637.50484000
1994-01-01	966934466.08304400
1994-02-01	1172359221.55144000
1994-03-01	1341865786.66878000
1994-04-01	1240491116.36165000
1994-05-01	1365856325.99872000
1994-06-01	1390055132.77100000
1994-07-01	1198297329.21092000
1994-08-01	1257029958.79233980
1994-09-01	1435474890.98655000
1994-10-01	1458276416.16825000
1994-11-01	1656661853.27678010
1994-12-01	1500754320.00764010
1995-01-01	1365823779.51739000
1995-02-01	1545882615.76616000
1995-03-01	1885454073.66036990
1995-04-01	1675962059.60041000
1995-05-01	1877909646.92730000
1995-06-01	1928946671.90049000
1995-07-01	1695840889.68949000
1995-08-01	1609307010.87741000
1995-09-01	1869808335.05996000
1995-10-01	2030659308.99646000
1995-11-01	2096399501.76691990
1995-12-01	1781586447.67117000
1996-01-01	1869745430.29094000
1996-02-01	1832217744.09097000
1996-03-01	1799443519.85423000
1996-04-01	1773712550.59891000
1996-05-01	1763341659.75247000
1996-06-01	1765549714.92804980
1996-07-01	1882653238.16148000
1996-08-01	1888730825.26352000
1996-09-01	1871225577.26465000
1996-10-01	1830121816.16833000
1996-11-01	1923332090.94297000
1996-12-01	1968215650.77448990
1997-01-01	1840317171.88403000
1997-02-01	1794535131.29879000
1997-03-01	1792842252.69535000
1997-04-01	1808293412.69715000
1997-05-01	1744577303.63876990
1997-06-01	1799633705.02221000
1997-07-01	1771693666.39473000
1997-08-01	1799988313.66133000
1997-09-01	1930690290.57406000
1997-10-01	2025842889.37860010
1997-11-01	1996957564.78083000
1997-12-01	1975869615.29601000
1998-01-01	2024175779.77698000
1998-02-01	2119261534.89450000
1998-03-01	2120372772.12499000
1998-04-01	2091463053.89575980
1998-05-01	2183975896.20611000
1998-06-01	2129102061.44725000
1998-07-01	2200682315.52336000
1998-08-01	2181554608.74987000
1998-09-01	2198601377.92365030
1998-10-01	2270753734.47531000
1998-11-01	2204677605.06620030
1998-12-01	2142015143.04280970
1999-01-01	1897865011.53609000
1999-02-01	1854453765.28562000
1999-03-01	2302472005.59888000
1999-04-01	2127787415.90148970
1999-05-01	2219435825.10578000
1999-06-01	2314947903.43075000
1999-07-01	1991045621.98923020
1999-08-01	2065632616.29754970
1999-09-01	2390428522.63472000
1999-10-01	2340298216.54810000
1999-11-01	2503463984.05619000
1999-12-01	2219223778.46679970
2000-01-01	2147728553.71434970
2000-02-01	2325421237.73031000
2000-03-01	2597393004.81817000
2000-04-01	2171151312.78613000
2000-05-01	2401946534.88798000
2000-06-01	2702266387.30919000
2000-07-01	2193426661.15264000
2000-08-01	2283801733.93657000
2000-09-01	2394656713.48591000
2000-10-01	2630680266.11447000
2000-11-01	2785301637.13837000
2000-12-01	2332908606.50989960
2001-01-01	2658824100.71505980
2001-02-01	2739009637.75341000
2001-03-01	3039317017.09852000
2001-04-01	2652564152.23484040
2001-05-01	2861541699.43618000
2001-06-01	2729852512.38635000
2001-07-01	2419263449.54976000
2001-08-01	2569933054.20079000
2001-09-01	2831879450.15162000
2001-10-01	3241409660.61118000
2001-11-01	3150235368.33931970
2001-12-01	2470510221.19240000
2002-01-01	2717216439.18180000
2002-02-01	2843854366.27430000
2002-03-01	3086863730.65262000
2002-04-01	3233700545.52195020
2002-05-01	3120187830.17022040
2002-06-01	3204469027.93927960
2002-07-01	3242619660.54365000
2002-08-01	2780400254.12961000
2002-09-01	3665445697.51274970
2002-10-01	3750476124.18210030
2002-11-01	3852166627.87992000
2002-12-01	3010780273.37042000
2003-01-01	3651129848.22934000
2003-02-01	3597363894.89638040
2003-03-01	4056516883.03280000
2003-04-01	3990906681.21931030
2003-05-01	4156717842.25417000
2003-06-01	4114141271.54982000
2003-07-01	3939427825.92488000
2003-08-01	3400787038.56159000
2003-09-01	4292532421.48721030
2003-10-01	4862438946.78228000
2003-11-01	4384947337.62434000
2003-12-01	4260268922.14270970
2004-01-01	4174120806.35668040
2004-02-01	4841145582.88935000
2004-03-01	5314136032.38867000
2004-04-01	5482421271.73840000
2004-05-01	5826779049.62587900
2004-06-01	6003173716.46038100
2004-07-01	5247721737.90280000
2004-08-01	5088109120.83486000
2004-09-01	6108181626.48485900
2004-10-01	6291789282.81359000
2004-11-01	6869719105.35431000
2004-12-01	5952064529.61407000
2005-01-01	5931538636.22287000
2005-02-01	6059333795.97501900
2005-03-01	6840594326.18652900
2005-04-01	6618628393.72302000
2005-05-01	6531555929.03115900
2005-06-01	6754841202.66440000
2005-07-01	5544954581.73388000
2005-08-01	6239062782.37612000
2005-09-01	7083513266.93528900
2005-10-01	6906626157.40740000
2005-11-01	7332473244.39231000
2005-12-01	6151055390.57169000
2006-01-01	6908261915.81880000
2006-02-01	6703844692.15797000
2006-03-01	7895218430.33944000
2006-04-01	6951021892.62649000
2006-05-01	8199805529.63709000
2006-06-01	8201895059.98859000
2006-07-01	7179492898.15269000
2006-08-01	7551203724.91252000
2006-09-01	8486270648.49186000
2006-10-01	9365125412.83585000
2006-11-01	9695061075.19956000
2006-12-01	8050424465.11965900
2007-01-01	8851185630.73607000
2007-02-01	8972406812.48075100
2007-03-01	10297150709.63860100
2007-04-01	9509375696.48523900
2007-05-01	9804138869.01690000
2007-06-01	10022456889.89200000
2007-07-01	9573605736.12335000
2007-08-01	9491589178.52291000
2007-09-01	10736637247.56160000
2007-10-01	12676255850.37530000
2007-11-01	13059659233.02420000
2007-12-01	9801858835.83419000
2008-01-01	12067676866.82540000
2008-02-01	12632955839.90450100
2008-03-01	13185358812.93380000
2008-04-01	14155344187.37500000
2008-05-01	12994870986.00430000
2008-06-01	14030294348.91530000
2008-07-01	13827843722.97770100
2008-08-01	10691346697.81590000
2008-09-01	13101717164.17110000
2008-10-01	11696869794.23560000
2008-11-01	9856511834.29708100
2008-12-01	8102054381.59868050
2009-01-01	7729435659.36457000
2009-02-01	7565462850.64956000
2009-03-01	9373653784.46148000
2009-04-01	8694874598.91001000
2009-05-01	8488168427.20858000
2009-06-01	9869468994.61631000
2009-07-01	9405851546.64649000
2009-08-01	8882991309.69940000
2009-09-01	11324220639.80630100
2009-10-01	11324255762.46910000
2009-11-01	11383164065.72539900
2009-12-01	9206682116.08442000
2010-01-01	9666457363.35144000
2010-02-01	9825119320.72884000
2010-03-01	11714313139.98110000
2010-04-01	10634662522.82199900
2010-05-01	10207369010.92739900
2010-06-01	10642715345.27020000
2010-07-01	10121904954.60179900
2010-08-01	10286324927.93000000
2010-09-01	12464466220.19930000
2010-10-01	13278352267.21040000
2010-11-01	13389999672.84650000
2010-12-01	10907807963.52430000
2011-01-01	12286104202.83740000
2011-02-01	12308801090.07170100
2011-03-01	14978005029.42160000
2011-04-01	13749623808.25300000
2011-05-01	14433343658.54180000
2011-06-01	14641540102.33150100
2011-07-01	12945338295.37190000
2011-08-01	13011963259.55770000
2011-09-01	14349553892.16980000
2011-10-01	14503912882.10810000
2011-11-01	14200075575.17070000
2011-12-01	11713056344.33620000
2012-01-01	12840443899.82590000
2012-02-01	13431985836.53000000
2012-03-01	14998155822.07210000
2012-04-01	13264825055.36220000
2012-05-01	12977166048.51280000
2012-06-01	12896574887.17070000
2012-07-01	11814030101.84019900
2012-08-01	11843397775.13770000
2012-09-01	13427485882.32230000
2012-10-01	14916130828.93340000
2012-11-01	14042597376.28530100
2012-12-01	11024159548.97539900
2013-01-01	12899109483.06519900
2013-02-01	12789369035.69010000
2013-03-01	13222793200.88770100
2013-04-01	13564494293.33240000
2013-05-01	12923636598.23370000
2013-06-01	13213155712.10620000
2013-07-01	12898298175.44240000
2013-08-01	12590627584.86560000
2013-09-01	14642227951.18010000
2013-10-01	15949630731.62960000
2013-11-01	15099539671.97150000
2013-12-01	12592120003.71160000
2014-01-01	14544679421.03410000
2014-02-01	14235129593.50240000
2014-03-01	15712408092.65220000
2014-04-01	15227142461.78690000
2014-05-01	14648696491.06040000
2014-06-01	14961066520.79189900
2014-07-01	15243821966.29440000
2014-08-01	12201644983.55240000
2014-09-01	15731380577.11550000
2014-10-01	15533277552.90320000
2014-11-01	14450529637.14220000
2014-12-01	12530244647.48820000
2015-01-01	12482767386.75540000
2015-02-01	12607725039.57080000
2015-03-01	13733794314.24890000
2015-04-01	12720543112.89180000
2015-05-01	12187962752.93280000
2015-06-01	13989701900.05360000
2015-07-01	13143616927.38390000
2015-08-01	11065732359.14280000
2015-09-01	14707608241.28850000
2015-10-01	15121451632.95520000
2015-11-01	13928919900.15890100
2015-12-01	12223194507.14429900
2016-01-01	12773902627.11229900
2016-02-01	13657900596.94960000
2016-03-01	14396260117.91750000
2016-04-01	14292624601.44320000
2016-05-01	13747520364.02230000
2016-06-01	14495200876.64860000
2016-07-01	11403027473.03100000
2016-08-01	12908280528.21360000
2016-09-01	14532093342.56220000
2016-10-01	14045403140.87290000
2016-11-01	14524014027.24130000
2016-12-01	11934760535.22729900
2017-01-01	13774501926.58620000
2017-02-01	13316305330.34260000
2017-03-01	15797552065.87420000
2017-04-01	13299694372.86509900
2017-05-01	15388081978.41040000
2017-06-01	15861162125.86750000
2017-07-01	13231153159.93100200
2017-08-01	15055110445.08420000
2017-09-01	16582840867.55210100
2017-10-01	17767326886.66630000
2017-11-01	17791879381.36570000
2017-12-01	14301840280.52410000
2018-01-01	17552684496.69850000
2018-02-01	16424537687.26590000
2018-03-01	17997151418.00729800
2018-04-01	17105472143.80369800
2018-05-01	16822505023.44280000
2018-06-01	17005498796.26200000
2018-07-01	14936526444.57770000
2018-08-01	15376976369.57910200
2018-09-01	16693330783.05060200