Quarterly Millions of US Dollars
1976-04-01 24
1985-04-01 28
1985-10-01 33
1986-04-01 36
1986-10-01 61
1987-01-01 130
1987-10-01 112
1988-01-01 376
1988-04-01 380
1988-07-01 50
1988-10-01 399
1989-01-01 79
1989-04-01 216
1989-07-01 502
1989-10-01 350
1990-01-01 200
1990-04-01 213
1990-07-01 150
1990-10-01 96
1991-04-01 267
1991-10-01 300
1992-01-01 285
1992-04-01 215
1992-07-01 1052
1992-10-01 913
1993-01-01 1118
1993-04-01 431
1993-07-01 596
1993-10-01 1590
1994-01-01 490
1994-04-01 -16
1994-07-01 9
1994-10-01 14
1995-01-01 -295
1995-04-01 -307
1995-07-01 1033
1995-10-01 157
1996-01-01 404
1996-04-01 1433
1996-07-01 -448
1996-10-01 -739
1997-01-01 661
1997-04-01 757
1997-07-01 657
1997-10-01 629
1998-01-01 921
1998-04-01 701
1998-07-01 -167
1998-10-01 -1479
1999-01-01 1042
1999-04-01 288
1999-07-01 0
1999-10-01 2879
2000-01-01 2106
2000-04-01 1905
2000-07-01 1645
2000-10-01 -143
2001-01-01 456
2001-04-01 -656
2001-07-01 -82
2001-10-01 361
2002-01-01 852
2002-04-01 -356
2002-07-01 -236
2002-10-01 -35
2003-01-01 226
2003-04-01 929
2003-07-01 404
2003-10-01 -769
2004-01-01 -30
2004-04-01 945
2004-07-01 398
2004-10-01 1850
2005-01-01 1895
2005-04-01 2420
2005-07-01 772
2005-10-01 1809
2006-01-01 2628
2006-04-01 650
2006-07-01 2622
2006-10-01 1166
2007-01-01 4068
2007-04-01 239
2007-07-01 -550
2007-10-01 1250
2008-01-01 -1198
2008-04-01 500
2008-07-01 1300
2008-10-01 -850
2009-01-01 1650
2009-04-01 250
2009-07-01 42
2009-10-01 -550
2010-01-01 1618
2010-04-01 371
2010-07-01 2862
2010-10-01 1652
2011-01-01 2796
2011-04-01 256
2011-07-01 -282
2011-10-01 1220
2012-01-01 2834
2012-04-01 2075
2012-07-01 2100
2012-10-01 6205
2013-01-01 2723
2013-04-01 6200
2013-07-01 1165
2013-10-01 6834
2014-01-01 755
2014-04-01 6571
2014-07-01 6281
2014-10-01 4894
2015-01-01 2113
2015-04-01 1133
2015-07-01 -1563
2015-10-01 -990
2016-01-01 1725
2016-04-01 5908
2016-07-01 -2153
2016-10-01 3322
2017-01-01 5447
2017-04-01 8997
2017-07-01 -223
2017-10-01 3964
2018-01-01 2870
2018-04-01 -1363