Quarterly Millions of US Dollars
1972-01-01 40
1972-04-01 40
1972-10-01 35
1973-01-01 31
1973-07-01 38
1973-10-01 30
1975-01-01 75
1975-04-01 43
1976-01-01 50
1976-04-01 72
1977-04-01 133
1977-10-01 78
1978-01-01 256
1980-01-01 -75
1980-04-01 36
1981-01-01 -50
1981-04-01 100
1981-07-01 90
1981-10-01 144
1982-01-01 183
1982-04-01 -130
1982-07-01 175
1983-01-01 -149
1983-04-01 -40
1984-04-01 -37
1985-01-01 -61
1985-04-01 -16
1985-07-01 -42
1985-10-01 -112
1986-04-01 -44
1986-10-01 -100
1987-01-01 -76
1987-04-01 -40
1987-10-01 -119
1988-01-01 -9
1988-04-01 -100
1988-07-01 -175
1988-10-01 -56
1990-01-01 34390
1991-01-01 201
1991-07-01 91
1991-10-01 166
1992-07-01 250
1993-01-01 200
1993-07-01 394
1993-10-01 -4
1994-01-01 59
1994-04-01 -45
1994-07-01 451
1994-10-01 -291
1995-01-01 -542
1995-04-01 487
1995-07-01 1963
1995-10-01 1096
1996-01-01 3344
1996-04-01 362
1996-07-01 7574
1996-10-01 655
1997-01-01 2246
1997-04-01 2592
1997-07-01 -5719
1997-10-01 671
1998-01-01 789
1998-04-01 101
1998-07-01 -295
1998-10-01 -168
1999-01-01 953
1999-04-01 2670
1999-07-01 451
1999-10-01 1211
2000-01-01 1910
2000-04-01 -553
2000-07-01 1801
2000-10-01 -1399
2001-01-01 4472
2001-04-01 -3926
2001-07-01 819
2001-10-01 -5095
2002-01-01 1178
2002-04-01 -3968
2002-07-01 747
2002-10-01 746
2003-01-01 -7276
2003-04-01 -2263
2003-07-01 -2899
2003-10-01 720
2004-01-01 1445
2004-04-01 991
2004-07-01 292
2004-10-01 443
2005-01-01 989
2005-04-01 -317
2005-10-01 -289
2006-01-01 268
2006-04-01 -875
2006-07-01 -1330
2006-10-01 -311
2007-01-01 -2030
2007-07-01 1000
2007-10-01 -276
2008-01-01 -640
2008-04-01 -302
2008-07-01 -564
2008-10-01 806
2009-01-01 -914
2009-04-01 -500
2009-07-01 1750
2009-10-01 1677
2010-01-01 -2616
2010-04-01 1000
2010-07-01 1097
2010-10-01 2788
2011-01-01 -546
2011-04-01 1000
2011-07-01 1000
2012-01-01 2738
2012-04-01 743
2013-01-01 -245
2013-04-01 604
2013-07-01 821
2013-10-01 3900
2014-01-01 2361
2014-04-01 1183
2014-07-01 -547
2014-10-01 2000
2015-01-01 5312
2015-04-01 644
2015-07-01 -97
2016-01-01 5049
2016-04-01 1255
2016-07-01 -2215
2016-10-01 1378
2017-01-01 2792
2017-04-01 -3102
2017-10-01 -1120
2018-01-01 5000
2018-04-01 1262