Quarterly Millions of US Dollars
1978-01-01 25
1978-04-01 44
1979-01-01 30
1979-04-01 80
1979-07-01 66
1980-04-01 46
1981-07-01 43
1982-01-01 42
1983-01-01 -4
1983-07-01 100
1984-01-01 104
1984-04-01 -80
1984-07-01 42
1985-01-01 400
1985-04-01 40
1985-07-01 21
1985-10-01 295
1986-04-01 -59
1986-07-01 -58
1988-04-01 -80
1988-07-01 248
1989-04-01 -72
1989-07-01 200
1990-01-01 -113
1990-04-01 -300
1990-07-01 -69
1991-01-01 -83
1991-07-01 -170
1991-10-01 -60
1992-01-01 300
1992-07-01 100
1992-10-01 38
1993-01-01 336
1993-04-01 263
1993-07-01 174
1993-10-01 1224
1994-01-01 1564
1994-04-01 140
1994-07-01 519
1994-10-01 296
1995-01-01 190
1995-04-01 268
1995-07-01 535
1995-10-01 437
1996-01-01 1307
1996-04-01 920
1996-07-01 1784
1996-10-01 1045
1997-01-01 689
1997-04-01 1149
1997-07-01 496
1997-10-01 -48
1998-01-01 -363
1998-04-01 70
1998-07-01 -105
1998-10-01 67
1999-01-01 -453
1999-04-01 -60
1999-07-01 -635
1999-10-01 -116
2000-01-01 -291
2000-04-01 230
2000-07-01 -533
2000-10-01 -95
2001-01-01 -706
2001-04-01 -37
2001-07-01 -1175
2001-10-01 -572
2002-01-01 -491
2002-04-01 -332
2002-07-01 962
2002-10-01 -356
2003-01-01 -28
2003-04-01 -154
2003-07-01 -553
2003-10-01 -460
2004-01-01 -1393
2004-04-01 738
2004-07-01 458
2004-10-01 230
2005-01-01 204
2005-04-01 1445
2005-07-01 -493
2005-10-01 229
2006-01-01 -252
2006-04-01 643
2006-07-01 497
2006-10-01 -210
2007-01-01 -662
2007-04-01 -1059
2007-07-01 -50
2007-10-01 -323
2008-01-01 0
2008-04-01 -80
2008-07-01 -30
2008-10-01 -424
2009-01-01 -167
2009-04-01 -450
2009-07-01 -268
2009-10-01 -284
2010-01-01 -250
2010-04-01 -336
2010-07-01 700
2010-10-01 1080
2011-01-01 328
2011-04-01 650
2011-07-01 -218
2011-10-01 387
2012-01-01 1439
2012-04-01 500
2012-07-01 2228
2012-10-01 2128
2013-01-01 1016
2013-04-01 -71
2013-07-01 500
2013-10-01 735
2014-01-01 290
2014-04-01 2750
2014-07-01 -313
2014-10-01 -100
2015-01-01 61
2015-04-01 -601
2015-07-01 -318
2015-10-01 -456
2016-01-01 -100
2016-04-01 674
2016-07-01 840
2016-10-01 -490
2017-01-01 614
2017-04-01 -316
2017-07-01 1991
2017-10-01 -1822
2018-01-01 123
2018-04-01 1347