Quarterly Millions of US Dollars
1986-04-01 100
1988-01-01 75
1988-07-01 268
1989-01-01 456
1989-07-01 441
1990-01-01 291
1993-04-01 -100
1994-01-01 -94
1994-07-01 -50
1995-01-01 -338
1995-07-01 -448
1995-10-01 33
1996-01-01 -5
1996-04-01 21
1996-07-01 -993
1996-10-01 985
1997-01-01 1164
1997-04-01 2835
1997-07-01 150
1997-10-01 636
1998-01-01 996
1998-04-01 4940
1998-07-01 6393
1998-10-01 -100
1999-04-01 -100
1999-07-01 -1
1999-10-01 -219
2000-04-01 -281
2000-07-01 20519
2001-01-01 -150
2001-04-01 -459
2001-10-01 -176
2002-01-01 525
2002-04-01 800
2002-10-01 1655
2003-01-01 2040
2003-04-01 -1215
2003-07-01 0
2003-10-01 1055
2004-01-01 -698
2004-04-01 1193
2004-07-01 750
2004-10-01 246
2005-01-01 762
2005-04-01 -50
2005-07-01 -2317
2005-10-01 35
2006-01-01 -31
2006-04-01 939
2006-07-01 1174
2006-10-01 5665
2007-01-01 3929
2007-04-01 2059
2007-07-01 240
2007-10-01 -491
2008-01-01 -466
2008-04-01 2630
2008-07-01 3753
2008-10-01 -221
2009-01-01 -1516
2009-04-01 1663
2009-07-01 -1516
2009-10-01 -927
2010-01-01 -3171
2010-04-01 6275
2010-07-01 521
2010-10-01 1824
2011-01-01 4286
2011-04-01 2545
2011-07-01 -1730
2011-10-01 -1061
2012-01-01 -795
2012-04-01 15897
2012-07-01 11455
2012-10-01 10253
2013-01-01 4990
2013-04-01 7077
2013-07-01 4143
2013-10-01 4092
2014-01-01 -11696
2014-04-01 258
2014-07-01 1185
2014-10-01 304
2015-01-01 -882
2015-04-01 -2173
2015-07-01 -3438
2015-10-01 15
2016-01-01 -1555
2016-04-01 1100
2016-07-01 135
2016-10-01 1346
2017-01-01 -2771
2017-04-01 -648
2017-07-01 6084
2017-10-01 -2184
2018-01-01 91
2018-04-01 -3986