Quarterly Millions of US Dollars
1972-07-01 50
1975-04-01 40
1976-01-01 25
1977-01-01 30
1977-07-01 100
1977-10-01 45
1980-01-01 -25
1980-04-01 50
1981-01-01 -30
1981-04-01 -44
1984-10-01 40
1985-01-01 170
1985-04-01 -50
1985-07-01 152
1985-10-01 -85
1986-01-01 162
1986-04-01 250
1986-07-01 72
1986-10-01 55
1987-01-01 274
1987-10-01 280
1988-01-01 315
1988-07-01 223
1988-10-01 272
1989-01-01 385
1989-04-01 102
1989-07-01 263
1989-10-01 105
1990-01-01 259
1990-04-01 120
1990-07-01 200
1990-10-01 364
1991-01-01 128
1991-04-01 54
1991-07-01 100
1991-10-01 840
1992-01-01 534
1992-04-01 52
1992-07-01 200
1993-01-01 1199
1993-04-01 641
1993-07-01 1195
1993-10-01 620
1994-01-01 964
1994-04-01 140
1994-07-01 509
1994-10-01 681
1995-01-01 -158
1995-04-01 713
1995-07-01 655
1995-10-01 657
1996-01-01 -92
1996-04-01 -49
1996-07-01 -533
1996-10-01 -383
1997-01-01 -18
1997-04-01 -117
1997-07-01 -127
1997-10-01 -360
1998-01-01 -328
1998-04-01 -10
1998-07-01 82
1998-10-01 82
1999-01-01 -132
1999-04-01 1227
1999-07-01 -632
1999-10-01 147
2000-01-01 -701
2000-04-01 -528
2000-07-01 -339
2000-10-01 221
2001-01-01 0
2001-04-01 918
2001-10-01 -472
2002-01-01 -501
2002-04-01 -235
2002-07-01 -200
2003-01-01 533
2003-04-01 -650
2003-07-01 308
2003-10-01 -200
2004-01-01 -332
2004-04-01 748
2004-07-01 756
2004-10-01 1428
2005-01-01 2712
2005-04-01 1052
2005-07-01 801
2005-10-01 252
2006-01-01 3490
2006-04-01 -1253
2006-07-01 2225
2006-10-01 1932
2007-01-01 2710
2007-04-01 815
2007-07-01 7
2007-10-01 -22
2008-01-01 1258
2008-04-01 3409
2008-07-01 577
2008-10-01 -218
2009-01-01 -1627
2009-04-01 -446
2009-07-01 1542
2009-10-01 1404
2010-01-01 1130
2010-04-01 192
2010-07-01 -1744
2010-10-01 -475
2011-01-01 2600
2011-04-01 421
2011-07-01 165
2011-10-01 -1229
2012-01-01 -108
2012-04-01 -525
2012-07-01 290
2012-10-01 -162
2013-01-01 1322
2013-04-01 301
2013-07-01 524
2013-10-01 3022
2014-01-01 1559
2014-04-01 -778
2014-07-01 -3411
2014-10-01 1581
2015-01-01 -1636
2015-04-01 -19
2015-07-01 15
2015-10-01 -576
2016-01-01 -709
2016-04-01 234
2016-07-01 -1611
2016-10-01 -528
2017-01-01 4
2017-04-01 -1454
2017-07-01 -1597
2017-10-01 947
2018-01-01 -1969
2018-04-01 -1982