Quarterly Millions of US Dollars
1975-10-01 18
1978-07-01 104
1979-01-01 37
1979-07-01 25
1980-07-01 46
1981-04-01 46
1981-10-01 25
1982-04-01 200
1982-07-01 37
1982-10-01 75
1983-01-01 36
1983-07-01 292
1984-07-01 -34
1985-07-01 -32
1985-10-01 -44
1986-01-01 300
1986-10-01 -25
1987-10-01 -18
1988-07-01 -75
1988-10-01 161
1989-01-01 -36
1989-07-01 -134
1990-07-01 280
1990-10-01 235
1991-04-01 263
1991-07-01 -7
1991-10-01 33
1992-01-01 76
1992-04-01 -178
1992-07-01 214
1992-10-01 206
1993-01-01 -24
1993-07-01 6
1993-10-01 25
1994-01-01 84
1994-04-01 1081
1994-07-01 324
1994-10-01 75
1995-01-01 -530
1995-07-01 125
1995-10-01 334
1996-01-01 155
1996-04-01 213
1996-07-01 650
1996-10-01 974
1997-01-01 925
1997-04-01 332
1997-07-01 -209
1997-10-01 -66
1998-01-01 -759
1998-04-01 419
1998-07-01 -104
1998-10-01 -327
1999-01-01 -71
1999-04-01 -3
1999-07-01 -1714
1999-10-01 -400
2000-01-01 728
2000-04-01 -785
2000-07-01 -30
2000-10-01 -539
2001-01-01 -363
2001-04-01 -376
2001-07-01 -165
2002-01-01 -76
2002-04-01 134
2002-07-01 -170
2002-10-01 150
2003-01-01 5
2003-04-01 387
2003-07-01 342
2004-01-01 1305
2004-04-01 25
2004-10-01 38
2005-01-01 200
2005-04-01 980
2005-07-01 99
2005-10-01 1280
2006-01-01 2000
2006-04-01 -242
2006-07-01 -400
2006-10-01 67
2007-01-01 1350
2007-04-01 875
2007-10-01 -22
2008-01-01 2000
2008-04-01 1600
2008-07-01 -47
2008-10-01 -301
2009-01-01 4700
2009-04-01 550
2009-07-01 934
2009-10-01 1290
2010-01-01 2860
2010-04-01 250
2010-07-01 -217
2010-10-01 444
2011-01-01 -435
2011-04-01 4115
2011-10-01 2840
2012-01-01 4105
2012-04-01 5375
2012-07-01 -83
2012-10-01 2429
2013-01-01 1225
2013-04-01 5130
2013-07-01 2550
2013-10-01 150
2014-01-01 2730
2014-04-01 800
2014-07-01 3861
2014-10-01 -12
2015-01-01 6336
2015-04-01 6897
2015-07-01 3432
2015-10-01 3683
2016-01-01 1559
2016-04-01 9156
2016-07-01 -1347
2016-10-01 3359
2017-01-01 2019
2017-04-01 4872
2017-07-01 7217
2017-10-01 3631
2018-01-01 1556
2018-04-01 6617