Month	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