Quarter	US Dollars, monthly level
1990-01-01	1856000000.0000000
1990-04-01	2351000000.0000000
1990-07-01	2480000000.0000000
1990-10-01	1591000000.0000000
1991-01-01	1046999999.9999999
1991-04-01	1630000000.0000000
1991-07-01	1179000000.0000000
1991-10-01	-153000000.0000000
1992-01-01	-324000000.0000000
1992-04-01	-253000000.0000000
1992-07-01	-1020000000.0000000
1992-10-01	-1038000000.0000000
1993-01-01	-373000000.0000000
1993-04-01	-292000000.0000000
1993-07-01	-1224000000.0000000
1993-10-01	-1775000000.0000000
1994-01-01	-1859000000.0000000
1994-04-01	-1050999999.9999999
1994-07-01	-1388000000.0000000
1994-10-01	-1454000000.0000000
1995-01-01	-703000000.0000000
1995-04-01	1536000000.0000000
1995-07-01	355000000.0000000
1995-10-01	-349000000.0000000
1996-01-01	-248000000.0000000
1996-04-01	880000000.0000000
1996-07-01	-142000000.0000000
1996-10-01	-443000000.0000000
1997-01-01	-719000000.0000000
1997-04-01	-272000000.0000000
1997-07-01	-1204000000.0000000
1997-10-01	-1824000000.0000000
1998-01-01	-1646000000.0000000
1998-04-01	-502000000.0000000
1998-07-01	-1401000000.0000000
1998-10-01	-1395000000.0000000
1999-01-01	-774000000.0000000
1999-04-01	367000000.0000000
1999-07-01	-905000000.0000000
1999-10-01	-886000000.0000000
2000-01-01	-164000000.0000000
2000-04-01	1016999999.9999999
2000-07-01	132000000.0000000
2000-10-01	74000000.0000000
2001-01-01	165000000.0000000
2001-04-01	1728000000.0000000
2001-07-01	2033000000.0000000
2001-10-01	2296000000.0000000
2002-01-01	3640000000.0000000
2002-04-01	4620000000.0000000
2002-07-01	4427000000.0000000
2002-10-01	3972000000.0000000
2003-01-01	4065000000.0000005
2003-04-01	5112000000.0000000
2003-07-01	3839000000.0000000
2003-10-01	3073000000.0000000
2004-01-01	2712000000.0000000
2004-04-01	3903000000.0000000
2004-07-01	2954000000.0000000
2004-10-01	2560000000.0000000
2005-01-01	2475000000.0000000
2005-04-01	3126000000.0000000
2005-07-01	3478000000.0000000
2005-10-01	2619000000.0000000
2006-01-01	2554000000.0000000
2006-04-01	3724000000.0000000
2006-07-01	2809000000.0000000
2006-10-01	3307000000.0000000
2007-01-01	1986000000.0000000
2007-04-01	3494000000.0000000
2007-07-01	1669000000.0000000
2007-10-01	4127000000.0000000
2008-01-01	3183000000.0000000
2008-04-01	2167000000.0000000
2008-07-01	4780000000.0000000
2008-10-01	2427000000.0000000
2009-01-01	3613000000.0000000
2009-04-01	6410000000.0000000
2009-07-01	3298000000.0000000
2009-10-01	3565000000.0000000
2010-01-01	1987000000.0000000
2010-04-01	5253000000.0000000
2010-07-01	2759000000.0000000
2010-10-01	1382000000.0000000
2011-01-01	1386000000.0000000
2011-04-01	4065000000.0000005
2011-07-01	1853000000.0000000
2011-10-01	1714000000.0000000
2012-01-01	2368000000.0000000
2012-04-01	3827000000.0000000
2012-07-01	3433000000.0000000
2012-10-01	2378000000.0000000
2013-01-01	297000000.0000000
2013-04-01	2907000000.0000000
2013-07-01	585000000.0000000
2013-10-01	-2267000000.0000000
2014-01-01	-2740000000.0000000
2014-04-01	3581000000.0000000
2014-07-01	1089000000.0000000
2014-10-01	740000000.0000000
2015-01-01	-1458000000.0000000
2015-04-01	764000000.0000000
2015-07-01	-1026000000.0000000
2015-10-01	-1701000000.0000000
2016-01-01	-332000000.0000000
2016-04-01	1085000000.0000000
2016-07-01	1183000000.0000000
2016-10-01	122000000.0000000
2017-01-01	-1182000000.0000000
2017-04-01	-1423000000.0000000
2017-07-01	-2495000000.0000000
2017-10-01	-3208000000.0000000
2018-01-01	-2373000000.0000000
2018-04-01	-2492000000.0000000
2018-07-01	-1589000000.0000000