Quarterly Millions of US Dollars
1975-04-01 53
1975-07-01 25
1978-07-01 25
1979-01-01 48
1979-04-01 35
1980-07-01 81
1980-10-01 29
1981-04-01 30
1982-07-01 -25
1985-07-01 -35
1985-10-01 -1
1986-01-01 -25
1986-07-01 -73
1986-10-01 -58
1990-04-01 -53
1991-01-01 245
1992-01-01 40
1992-04-01 20
1993-01-01 35
1993-04-01 333
1993-10-01 95
1994-01-01 -101
1994-04-01 -15
1994-07-01 0
1994-10-01 5
1995-01-01 -75
1996-01-01 246
1996-04-01 340
1996-07-01 440
1997-01-01 84
1997-07-01 300
1997-10-01 650
1998-04-01 450
1998-10-01 213
1999-01-01 360
1999-04-01 800
1999-07-01 204
2000-01-01 100
2000-07-01 395
2001-04-01 220
2001-07-01 821
2001-10-01 650
2002-04-01 864
2002-07-01 262
2002-10-01 816
2003-01-01 928
2003-04-01 -101
2003-07-01 10
2003-10-01 -22
2004-01-01 443
2004-07-01 -253
2004-10-01 500
2005-04-01 150
2005-07-01 -61
2006-01-01 -617
2006-04-01 400
2006-07-01 -200
2006-10-01 500
2007-01-01 134
2007-04-01 270
2007-07-01 -687
2007-10-01 -185
2008-01-01 -609
2008-04-01 -65
2008-07-01 392
2009-01-01 591
2009-04-01 -840
2009-07-01 351
2009-10-01 1051
2010-01-01 490
2010-04-01 380
2010-07-01 2218
2010-10-01 1500
2011-01-01 1645
2011-04-01 226
2011-07-01 940
2011-10-01 1631
2012-01-01 50
2012-04-01 503
2012-07-01 2134
2012-10-01 2914
2013-01-01 1650
2013-04-01 2282
2013-07-01 2099
2013-10-01 3744
2014-01-01 679
2014-04-01 494
2014-07-01 5506
2014-10-01 4291
2015-01-01 1135
2015-04-01 3872
2015-07-01 2233
2015-10-01 59
2016-01-01 2507
2016-04-01 -357
2016-07-01 913
2016-10-01 336
2017-01-01 555
2017-04-01 4890
2017-07-01 6648
2017-10-01 526
2018-01-01 2491
2018-04-01 -18