Monthly US Dollars, monthly level
1988-01-01 -33467764.115955997
1988-02-01 -25004927.772928300
1988-03-01 -114463803.457274000
1988-04-01 -52689596.874607300
1988-05-01 -76532414.642900600
1988-06-01 -97400475.017976610
1988-07-01 -40795301.292455200
1988-08-01 -83675135.267641600
1988-09-01 -97664977.211505400
1988-10-01 -65496861.444914800
1988-11-01 -11111323.448714599
1988-12-01 -43428341.878764300
1989-01-01 -94578984.012579200
1989-02-01 -43421825.261921700
1989-03-01 -82283889.653619600
1989-04-01 -37614831.282660700
1989-05-01 -28476228.220822800
1989-06-01 -62569471.402496590
1989-07-01 -92433985.635395300
1989-08-01 -63392307.539564400
1989-09-01 -54775074.648783600
1989-10-01 -70501399.847289400
1989-11-01 -82553258.063675000
1989-12-01 -106841632.468061000
1990-01-01 -67602616.147947700
1990-02-01 -71960304.846906000
1990-03-01 -98502824.858757000
1990-04-01 -88937391.513568400
1990-05-01 -117822555.269384000
1990-06-01 -90188205.046726300
1990-07-01 -131730532.874883010
1990-08-01 -111591117.272794990
1990-09-01 -137267359.873548980
1990-10-01 -151940918.591018000
1990-11-01 -117310284.723877000
1990-12-01 -107712206.952304000
1991-01-01 -128997823.242115000
1991-02-01 -96572861.155592890
1991-03-01 -213625831.120038000
1991-04-01 -134996142.967344000
1991-05-01 -114192495.921697000
1991-06-01 -119797805.476238000
1991-07-01 -188847821.895376000
1991-08-01 -135532490.798980000
1991-09-01 -123494914.662984000
1991-10-01 -175252104.461746000
1991-11-01 -137814653.353959020
1991-12-01 -201072261.505440000
1992-01-01 -118607678.497615000
1992-02-01 -134000234.035339010
1992-03-01 -165945968.086413980
1992-04-01 -130067731.938395000
1992-05-01 -130182585.195438980
1992-06-01 -130966895.593796010
1992-07-01 -145458098.557144020
1992-08-01 -143056349.755721000
1992-09-01 -128079214.027371990
1992-10-01 -157228174.031485020
1992-11-01 -133668859.232377010
1992-12-01 -232889806.883112000
1993-01-01 -142473263.719815020
1993-02-01 -159991026.333578020
1993-03-01 -162004335.451905000
1993-04-01 -146275826.587800000
1993-05-01 -132810937.585223000
1993-06-01 -105038984.603512000
1993-07-01 -109641504.478017000
1993-08-01 -135490642.042465000
1993-09-01 -84077771.939043600
1993-10-01 -104062358.877697000
1993-11-01 -87843847.892023900
1993-12-01 -434231334.406269970
1994-01-01 -112495410.463316000
1994-02-01 -136337603.196111000
1994-03-01 -171139533.949608030
1994-04-01 -161408867.192304000
1994-05-01 -151563113.682594000
1994-06-01 -139719964.377515000
1994-07-01 -185106304.170679000
1994-08-01 -182150998.562861980
1994-09-01 -109148211.617204010
1994-10-01 -160170422.607185000
1994-11-01 -150429053.936858000
1994-12-01 -207456190.479133000
1995-01-01 -134192061.200193000
1995-02-01 -154050705.391775000
1995-03-01 -239113985.003783020
1995-04-01 -179777257.772226000
1995-05-01 -210111282.054820000
1995-06-01 -169595806.509920000
1995-07-01 -159141532.297606000
1995-08-01 -154234370.209655000
1995-09-01 -237091885.568436000
1995-10-01 -140648423.536999000
1995-11-01 -149452465.193533000
1995-12-01 -250308198.936079980
1996-01-01 -185351539.106480000
1996-02-01 -214733193.674866020
1996-03-01 -260197600.100051000
1996-04-01 -193015359.741310000
1996-05-01 -169445861.952019000
1996-06-01 -255075249.585482980
1996-07-01 -186397579.503025980
1996-08-01 -171648387.624816000
1996-09-01 -174458366.130301980
1996-10-01 -167193380.869952000
1996-11-01 -159183634.163331000
1996-12-01 -286492027.477233000
1997-01-01 -173380342.164624000
1997-02-01 -178485133.473197000
1997-03-01 -205775193.244653000
1997-04-01 -135043200.217702000
1997-05-01 -176324350.432571000
1997-06-01 -173586497.890295000
1997-07-01 -184166046.920425000
1997-08-01 -322740866.771640000
1997-09-01 -147357544.906454000
1997-10-01 -122375693.655328990
1997-11-01 -159604496.090235000
1997-12-01 -402281113.353745000
1998-01-01 -122169869.212339000
1998-02-01 -162975668.534208000
1998-03-01 -174344417.768699000
1998-04-01 -173923259.098664000
1998-05-01 -161997394.275600020
1998-06-01 -167719192.006575020
1998-07-01 -194162446.819130000
1998-08-01 -163894835.955922000
1998-09-01 -169469783.352338020
1998-10-01 -224131446.222372000
1998-11-01 -152896478.023292000
1998-12-01 -446164570.565512000
1999-01-01 -164939889.038636980
1999-02-01 -242273537.378079980
1999-03-01 -393386505.312543000
1999-04-01 -200141030.597635980
1999-05-01 -232433966.492392000
1999-06-01 -161575074.634655000
1999-07-01 -309969145.942502000
1999-08-01 -187585936.316742000
1999-09-01 -140697017.354486020
1999-10-01 -293481253.144485000
1999-11-01 -349894788.666610000
1999-12-01 -328461693.397727000
2000-01-01 -165112565.313527000
2000-02-01 -193043872.199960000
2000-03-01 -228608635.832622000
2000-04-01 -222882780.059690000
2000-05-01 -235228284.135920020
2000-06-01 -199338314.715327000
2000-07-01 -250795248.694658000
2000-08-01 -240971881.456123000
2000-09-01 -246430363.087919980
2000-10-01 -287118335.819154000
2000-11-01 -253378434.702079980
2000-12-01 -351263419.244944000
2001-01-01 -170217173.430375000
2001-02-01 -193848901.757218000
2001-03-01 -210533209.284433000
2001-04-01 -217718697.261136000
2001-05-01 -198427328.831252000
2001-06-01 -326164527.068344950
2001-07-01 -206471889.065316000
2001-08-01 -363974669.814524000
2001-09-01 -134144728.799561000
2001-10-01 -110522389.757174000
2001-11-01 -155544470.511727000
2001-12-01 -276277138.112848000
2002-01-01 -129930786.691663000
2002-02-01 -132953054.297503010
2002-03-01 -232125465.019876000
2002-04-01 -187463602.524416000
2002-05-01 -159761963.267746000
2002-06-01 -75279996.267674210
2002-07-01 -162542880.336287000
2002-08-01 -378105200.679509000
2002-09-01 -155457111.536881000
2002-10-01 -177015019.551859000
2002-11-01 -383717225.635625000
2002-12-01 -280547886.392343040
2003-01-01 -211078279.217549000
2003-02-01 -217228332.689123000
2003-03-01 -234962477.898320020
2003-04-01 -402744881.022676050
2003-05-01 -378347876.529844000
2003-06-01 -264915791.442752000
2003-07-01 -201327182.526685980
2003-08-01 -246731037.472062980
2003-09-01 -178724279.779697980
2003-10-01 -117119097.673751010
2003-11-01 -144712221.303425000
2003-12-01 -261464587.479258980
2004-01-01 -221506754.928552000
2004-02-01 -350632560.783252000
2004-03-01 -351058658.693105000
2004-04-01 -520804139.135868970
2004-05-01 -304292952.611387000
2004-06-01 -266892547.159933980
2004-07-01 -277515492.151484000
2004-08-01 -293434559.094762000
2004-09-01 -313731488.473553000
2004-10-01 -60169018.908965000
2004-11-01 -461677307.514773960
2004-12-01 -373874349.100797950
2005-01-01 -233478945.074586000
2005-02-01 -400702748.709327000
2005-03-01 -343694497.064584000
2005-04-01 -326137760.520098030
2005-05-01 -268353516.409698000
2005-06-01 -258820521.533253000
2005-07-01 -250380728.505137000
2005-08-01 -204820986.880298020
2005-09-01 -307949062.883058000
2005-10-01 -124988016.483925000
2005-11-01 -489442143.651061950
2005-12-01 -228301710.867306000
2006-01-01 -221635017.010577000
2006-02-01 -282606652.750414000
2006-03-01 -281765625.538011000
2006-04-01 -491282562.134662000
2006-05-01 -478473963.338141000
2006-06-01 -126875269.573954000
2006-07-01 -311360752.037867000
2006-08-01 -282474750.236575000
2006-09-01 -359967618.387904000
2006-10-01 -245746513.594174980
2006-11-01 -422786460.141345000
2006-12-01 -625602746.033355000
2007-01-01 -273139140.443196000
2007-02-01 -445715063.816376000
2007-03-01 -448488178.479041000
2007-04-01 -490815591.286421000
2007-05-01 -467332189.671624000
2007-06-01 -304281374.382679000
2007-07-01 -367505852.967599030
2007-08-01 -530783123.290369030
2007-09-01 -443764614.915229000
2007-10-01 -425596315.361991000
2007-11-01 -396186558.316881000
2007-12-01 -505989440.223971960
2008-01-01 -371653028.464911000
2008-02-01 -432784241.696883000
2008-03-01 -644312299.967418000
2008-04-01 -606840302.335110000
2008-05-01 -698160724.391624000
2008-06-01 -547981630.990297000
2008-07-01 -851390791.997808000
2008-08-01 -500597907.324365000
2008-09-01 -277600260.841213000
2008-10-01 -254464131.124834000
2008-11-01 -663783233.685282000
2008-12-01 -623564954.682779000
2009-01-01 -363444547.013056000
2009-02-01 -329340933.837187000
2009-03-01 -330176041.728409000
2009-04-01 -426585848.886755000
2009-05-01 -440875674.972350000
2009-06-01 -456718794.789311000
2009-07-01 -184974886.683817000
2009-08-01 -140228245.363765980
2009-09-01 -45742285.789961600
2009-10-01 -253925925.925926000
2009-11-01 -342716466.902074040
2009-12-01 -644134042.822755000
2010-01-01 -467047541.318098000
2010-02-01 -424847779.982212000
2010-03-01 -479647218.453188960
2010-04-01 -131137359.961033020
2010-05-01 -1105944683.908050000
2010-06-01 -522373314.092245940
2010-07-01 -365579773.321709000
2010-08-01 -383926373.175449970
2010-09-01 -380542663.334523000
2010-10-01 -422916666.666667000
2010-11-01 -439154685.176004000
2010-12-01 -840135585.430311900
2011-01-01 -359963350.851965000
2011-02-01 -478388528.508022960
2011-03-01 -570935900.560566000
2011-04-01 -520879801.734819950
2011-05-01 -680359234.673956000
2011-06-01 -736406495.547407000
2011-07-01 -651527106.999524000
2011-08-01 -1057977065.935440000
2011-09-01 -513067400.275103000
2011-10-01 -1349784398.275190000
2011-11-01 -418782758.833323000
2011-12-01 -669045057.965818000
2012-01-01 -289935483.870968000
2012-02-01 -528408446.265364000
2012-03-01 -879101879.089872000
2012-04-01 -617670280.092738000
2012-05-01 -1002068850.453260000
2012-06-01 -581661891.117478000
2012-07-01 -678425460.636516000
2012-08-01 -582132456.045734000
2012-09-01 -1112783889.853950000
2012-10-01 -677905664.635522000
2012-11-01 -711859067.841100900
2012-12-01 -788960430.080640000
2013-01-01 -645212765.957447000
2013-02-01 -564205189.780535000
2013-03-01 -1004730771.603030100
2013-04-01 -621407850.334497900
2013-05-01 -969360518.999073000
2013-06-01 -581344765.128804900
2013-07-01 -588118227.508519000
2013-08-01 -500222713.914293940
2013-09-01 -1124124682.800810000
2013-10-01 -479805304.306924000
2013-11-01 -663645618.891933000
2013-12-01 -486081998.695625000
2014-01-01 -490407440.926041000
2014-02-01 -584629092.608638000
2014-03-01 -776863074.080464000
2014-04-01 -664144793.835013000
2014-05-01 -527394155.963337060
2014-06-01 -584440554.460778000
2014-07-01 -915603479.169646000
2014-08-01 -474750972.140841000
2014-09-01 -544769988.806257000
2014-10-01 -725814716.977389000
2014-11-01 -430888181.210131000
2014-12-01 -833665676.151240000
2015-01-01 -354109820.032498000
2015-02-01 -443579846.075749040
2015-03-01 -972229870.589623900
2015-04-01 -510011266.730505000
2015-05-01 -454851247.126492000
2015-06-01 -515277907.360305000
2015-07-01 -495828150.416228000
2015-08-01 -397611321.310784040
2015-09-01 -794791608.771008000
2015-10-01 -451633522.437194000
2015-11-01 -472463737.041286050
2015-12-01 -282105320.960899000
2016-01-01 -344338591.866244000
2016-02-01 -415547311.302695040
2016-03-01 -512953147.243640070
2016-04-01 -407907476.818713960
2016-05-01 -407072879.723843000
2016-06-01 -478163440.669165000
2016-07-01 -439008053.483471000
2016-08-01 -369851499.019333000
2016-09-01 -541529216.128051000
2016-10-01 -898777727.763490000
2016-11-01 -559034727.751577000
2016-12-01 -583336886.273499000
2017-01-01 -261706844.268868980
2017-02-01 -681524946.666042000
2017-03-01 -693775189.077876100
2017-04-01 -509029078.728081000
2017-05-01 -679401774.563689000
2017-06-01 -652016477.887332900
2017-07-01 -467191912.011532000
2017-08-01 -482845886.176056000
2017-09-01 -548907183.021814000
2017-10-01 -562368822.641800000
2017-11-01 -646319511.634125000
2017-12-01 -727671059.399063000
2018-01-01 -683109630.126120000
2018-02-01 -585715502.208466000
2018-03-01 -699230780.008687000
2018-04-01 -635619588.863159900
2018-05-01 -651842651.591165000
2018-06-01 -525244347.220221940
2018-07-01 -534241511.326022000
2018-08-01 -439792416.212022960