Quarter	US Dollars, Monthly Level
1990-01-01	-840592350.8221480
1990-04-01	-1073000000.0000000
1990-07-01	-1354000000.0000000
1990-10-01	-2346000000.0000000
1991-01-01	-1156000000.0000000
1991-04-01	-739000000.0000000
1991-07-01	-175000000.0000000
1991-10-01	-650000000.0000000
1992-01-01	-61000000.0000000
1992-04-01	-1546000000.0000000
1992-07-01	-1086000000.0000000
1992-10-01	-901000000.0000000
1993-01-01	123000000.0000000
1993-04-01	-287000000.0000000
1993-07-01	-489000000.0000000
1993-10-01	-552000000.0000000
1994-01-01	261000000.0000000
1994-04-01	-300000000.0000000
1994-07-01	-770000000.0000000
1994-10-01	-1012000000.0000000
1995-01-01	-243000000.0000000
1995-04-01	-1063000000.0000000
1995-07-01	-1662000000.0000000
1995-10-01	-1109000000.0000000
1996-01-01	-1056000000.0000000
1996-04-01	-971000000.0000000
1996-07-01	-884000000.0000000
1996-10-01	-1925000000.0000000
1997-01-01	-1864000000.0000000
1997-04-01	-1525000000.0000000
1997-07-01	-974000000.0000000
1997-10-01	-2075000000.0000002
1998-01-01	-1860000000.0000000
1998-04-01	-2778000000.0000000
1998-07-01	-2585000000.0000000
1998-10-01	-2292000000.0000000
1999-01-01	-1545000000.0000000
1999-04-01	-2487000000.0000000
1999-07-01	-3529000000.0000000
1999-10-01	-3736000000.0000000
2000-01-01	-3082000000.0000000
2000-04-01	-2458000000.0000000
2000-07-01	-1685000000.0000000
2000-10-01	-1958000000.0000000
2001-01-01	-419000000.0000000
2001-04-01	-2429000000.0000000
2001-07-01	-2415000000.0000000
2001-10-01	-1786000000.0000000
2002-01-01	-506000000.0000000
2002-04-01	-1561000000.0000000
2002-07-01	-1232000000.0000000
2002-10-01	-2851000000.0000000
2003-01-01	-1806000000.0000000
2003-04-01	-4258000000.0000000
2003-07-01	-3240000000.0000000
2003-10-01	-4305000000.0000000
2004-01-01	-2470000000.0000000
2004-04-01	-6103000000.0000000
2004-07-01	-6703000000.0000000
2004-10-01	-7842000000.0000000
2005-01-01	-7340000000.0000000
2005-04-01	-12821000000.0000000
2005-07-01	-12645000000.0000000
2005-10-01	-10449000000.0000000
2006-01-01	-8959000000.0000000
2006-04-01	-13275900000.0000000
2006-07-01	-15536700000.0000000
2006-10-01	-18830700000.0000000
2007-01-01	-11677600000.0000000
2007-04-01	-23652600000.0000000
2007-07-01	-22036700000.0000000
2007-10-01	-21844100000.0000000
2008-01-01	-19963200000.0000000
2008-04-01	-32383200000.0000040
2008-07-01	-43705600000.0000000
2008-10-01	-30151500000.0000000
2009-01-01	-12160800000.0000000
2009-04-01	-24033600000.0000000
2009-07-01	-23147600000.0000000
2009-10-01	-32951500000.0000040
2010-01-01	-29488800000.0000000
2010-04-01	-33982400000.0000000
2010-07-01	-32600299999.9999960
2010-10-01	-27809900000.0000000
2011-01-01	-24240200000.0000000
2011-04-01	-46171986800.0000000
2011-07-01	-43090554000.0000000
2011-10-01	-48054177800.0000000
2012-01-01	-46038854820.0000000
2012-04-01	-42978175010.0000000
2012-07-01	-48841806000.0000000
2012-10-01	-55006953100.0000000
2013-01-01	-43509090070.0000000
2013-04-01	-47422713200.0000000
2013-07-01	-29301753230.0000000
2013-10-01	-30353004820.0000000
2014-01-01	-28720487340.0000000
2014-04-01	-33433478010.0000000
2014-07-01	-39351883090.0000000
2014-10-01	-38933960760.0000000
2015-01-01	-25962077410.0000000
2015-04-01	-32890479460.0000000
2015-07-01	-35656048240.0000000
2015-10-01	-31530842580.0000000
2016-01-01	-18639299540.0000000
2016-04-01	-18966339860.0000000
2016-07-01	-24390500740.0000000
2016-10-01	-35076077150.0000000
2017-01-01	-30071678060.0000000
2017-04-01	-42629716950.0000000
2017-07-01	-34033487989.9999960
2017-10-01	-43908490990.0000000
2018-01-01	-40768151470.0000000
2018-04-01	-46392087170.0000000
2018-07-01	-49287446550.0000000