Quarterly Millions of US Dollars
1972-07-01 31
1972-10-01 35
1973-10-01 36
1974-10-01 25
1976-04-01 50
1976-07-01 40
1976-10-01 109
1977-04-01 149
1977-10-01 224
1978-04-01 33
1978-07-01 150
1978-10-01 140
1979-01-01 150
1979-07-01 82
1979-10-01 130
1980-04-01 175
1981-04-01 -50
1982-04-01 -85
1983-04-01 -27
1983-10-01 -75
1984-04-01 -55
1984-10-01 -91
1985-10-01 -248
1986-10-01 -109
1987-01-01 -82
1987-07-01 -82
1987-10-01 -184
1988-04-01 -215
1988-07-01 -179
1988-10-01 -51
1989-01-01 -210
1989-07-01 1000
1989-10-01 -168
1994-04-01 42786
1995-04-01 952
1995-07-01 718
1995-10-01 -6
1996-01-01 284
1996-04-01 237
1996-07-01 139
1996-10-01 728
1997-01-01 610
1997-04-01 3170
1997-07-01 476
1998-01-01 1049
1998-04-01 1659
1998-07-01 -567
1998-10-01 -8663
1999-04-01 1776
1999-07-01 1223
1999-10-01 3373
2000-01-01 3372
2000-04-01 -4017
2000-07-01 7322
2000-10-01 1187
2001-01-01 2198
2001-04-01 -4859
2001-07-01 -1476
2001-10-01 -1687
2002-01-01 2455
2002-04-01 624
2002-07-01 -1147
2002-10-01 -378
2003-01-01 -566
2003-04-01 1319
2003-07-01 -80
2003-10-01 1075
2004-01-01 1500
2004-04-01 -2210
2004-07-01 1347
2004-10-01 1368
2005-01-01 2593
2005-04-01 625
2005-07-01 -42
2005-10-01 -772
2006-01-01 -1104
2006-04-01 -11301
2006-07-01 1245
2006-10-01 1246
2007-01-01 337
2007-04-01 646
2007-07-01 -1781
2007-10-01 -900
2008-01-01 -598
2008-04-01 -1094
2009-01-01 1025
2009-04-01 -179
2009-07-01 490
2009-10-01 575
2010-01-01 -1037
2010-04-01 274
2010-07-01 1164
2010-10-01 -847
2011-01-01 -1367
2011-07-01 -700
2011-10-01 2100
2012-01-01 -382
2012-04-01 1705
2012-07-01 1250
2013-04-01 354
2013-07-01 662
2013-10-01 4750
2014-04-01 1380
2014-07-01 2906
2014-10-01 -2378
2015-01-01 -3000
2015-07-01 -5530
2016-01-01 630
2016-07-01 1500
2017-01-01 -1550
2017-04-01 -427
2017-10-01 700
2018-01-01 -3009