Quarterly Millions of US Dollars
1975-04-01 12
1975-10-01 19
1976-04-01 25
1976-10-01 12
1977-07-01 30
1981-01-01 75
1982-04-01 38
1982-07-01 -17
1982-10-01 -20
1983-04-01 -25
1983-10-01 -12
1984-07-01 -15
1985-10-01 75
1986-01-01 -75
1987-04-01 75
1987-10-01 75
1990-01-01 75
1991-04-01 20
1991-07-01 110
1992-01-01 39
1992-04-01 -50
1992-10-01 -75
1993-07-01 150
1993-10-01 -60
1994-01-01 88
1994-04-01 50
1994-07-01 50
1994-10-01 50
1995-01-01 -75
1995-04-01 0
1995-07-01 0
1995-10-01 -150
1996-01-01 -20
1996-04-01 250
1996-07-01 -230
1996-10-01 242
1997-01-01 81
1997-04-01 143
1997-07-01 600
1997-10-01 39
1998-01-01 -37
1998-04-01 500
1998-07-01 73
1998-10-01 15
1999-01-01 48
1999-04-01 442
1999-07-01 -38
1999-10-01 -54
2000-01-01 45
2000-04-01 890
2000-07-01 365
2000-10-01 86
2001-01-01 -269
2001-04-01 -279
2001-07-01 -5
2001-10-01 3767
2002-01-01 -96
2002-04-01 -28
2002-07-01 -659
2002-10-01 -21
2003-01-01 200
2003-04-01 26
2003-07-01 381
2003-10-01 2697
2004-01-01 104
2004-04-01 428
2004-07-01 -17
2004-10-01 901
2005-01-01 110
2005-04-01 101
2005-07-01 187
2005-10-01 -186
2006-01-01 5
2006-04-01 1667
2006-07-01 124
2006-10-01 396
2007-01-01 458
2007-04-01 1275
2007-07-01 55
2007-10-01 1035
2008-01-01 494
2008-04-01 48
2008-07-01 416
2008-10-01 -890
2009-01-01 -152
2009-04-01 581
2009-07-01 1553
2009-10-01 161
2010-01-01 303
2010-04-01 922
2010-07-01 214
2010-10-01 240
2011-01-01 598
2011-04-01 -312
2011-07-01 98
2011-10-01 -1869
2012-01-01 1407
2012-04-01 -631
2012-07-01 1376
2012-10-01 373
2013-01-01 1279
2013-04-01 -478
2013-07-01 286
2013-10-01 -664
2014-01-01 944
2014-04-01 631
2014-07-01 759
2014-10-01 -94
2015-01-01 534
2015-04-01 2224
2015-07-01 -293
2015-10-01 112
2016-01-01 -811
2016-04-01 -13
2016-07-01 -159
2016-10-01 -211
2017-01-01 18
2017-04-01 -92
2017-07-01 3770
2017-10-01 562
2018-01-01 -505
2018-04-01 1611