Quarterly Millions of US Dollars
1973-07-01 27
1975-01-01 24
1977-04-01 43
1977-07-01 21
1978-07-01 -48
1981-10-01 30
1982-07-01 23
1984-07-01 -13
1984-10-01 75
1985-01-01 -15
1985-04-01 -26
1985-10-01 40
1986-07-01 73
1986-10-01 55
1987-04-01 64
1988-01-01 156
1988-04-01 6
1988-07-01 -24
1989-04-01 158
1989-07-01 71
1990-01-01 136
1990-04-01 142
1991-01-01 -67
1991-04-01 149
1991-07-01 -50
1991-10-01 -85
1992-01-01 -117
1992-04-01 -1
1992-07-01 -29
1992-10-01 52
1993-01-01 32
1993-04-01 3
1993-07-01 106
1993-10-01 820
1994-01-01 540
1994-04-01 319
1994-07-01 430
1994-10-01 193
1995-01-01 -293
1995-04-01 -292
1995-07-01 53
1995-10-01 301
1996-01-01 81
1996-04-01 301
1996-07-01 116
1996-10-01 7
1997-01-01 369
1997-04-01 4
1997-07-01 800
1997-10-01 -187
1998-01-01 -76
1998-04-01 -81
1998-07-01 106
1998-10-01 261
1999-01-01 938
1999-04-01 -145
1999-07-01 773
1999-10-01 547
2000-01-01 675
2000-04-01 -81
2000-07-01 65
2000-10-01 636
2001-01-01 -515
2001-04-01 2303
2001-07-01 5
2001-10-01 676
2002-01-01 1932
2002-04-01 1023
2002-07-01 -378
2002-10-01 -20
2003-01-01 -64
2003-04-01 173
2003-07-01 638
2003-10-01 -164
2004-01-01 536
2004-04-01 -25
2004-07-01 -557
2004-10-01 -827
2005-01-01 126
2005-04-01 42
2005-07-01 -24
2005-10-01 -452
2006-01-01 123
2006-04-01 -299
2006-07-01 -172
2006-10-01 490
2007-01-01 126
2007-04-01 27
2007-07-01 -64
2007-10-01 -42
2008-01-01 1
2008-04-01 -69
2008-07-01 -12
2008-10-01 1343
2009-01-01 -2248
2009-04-01 2031
2009-07-01 -911
2009-10-01 175
2010-01-01 -350
2010-04-01 352
2010-07-01 161
2010-10-01 -195
2011-01-01 -2260
2011-04-01 2824
2011-07-01 611
2011-10-01 -390
2012-01-01 818
2012-04-01 1477
2012-07-01 102
2012-10-01 2737
2013-01-01 2555
2013-04-01 3710
2013-07-01 -330
2013-10-01 1258
2014-01-01 -66
2014-04-01 2477
2014-07-01 3003
2014-10-01 801
2015-01-01 236
2015-04-01 1139
2015-07-01 410
2015-10-01 -340
2016-01-01 711
2016-04-01 4
2016-07-01 573
2016-10-01 2407
2017-01-01 3506
2017-04-01 352
2017-07-01 53
2017-10-01 1271
2018-01-01 -660
2018-04-01 2378