Quarterly US dollars
1986-12-31 -311
1987-03-31 2560
1987-06-30 -2449
1987-09-30 1160
1987-12-31 1568
1988-03-31 -3717
1988-06-30 -614
1988-09-30 1008
1988-12-31 -77
1989-03-31 1582
1989-06-30 -2384
1989-09-30 852
1989-12-31 4372
1990-03-31 729
1990-06-30 1673
1990-09-30 6393
1990-12-31 -973
1991-03-31 1715
1991-06-30 2940
1991-09-30 3213
1991-12-31 -3495
1992-03-31 -5746
1992-06-30 2400
1992-09-30 8663
1992-12-31 -15463
1993-03-31 9525
1993-06-30 2629
1993-09-30 6940
1993-12-31 3646
1994-03-31 -66
1994-06-30 2029
1994-09-30 5459
1994-12-31 360
1995-03-31 7999
1995-06-30 -3749
1995-09-30 -884
1995-12-31 -11221
1996-03-31 -842
1996-06-30 -1696
1996-09-30 447
1996-12-31 48
1997-03-31 2167
1997-06-30 -1643
1997-09-30 -44878
1997-12-31 -42865
1998-03-31 -3266
1998-06-30 7855
1998-09-30 3432
1998-12-31 -666
1999-03-31 70835
1999-06-30 58445
1999-09-30 -78678
1999-12-31 -21532
2000-03-31 18657
2000-06-30 2624
2000-09-30 2627
2000-12-31 -31716
2001-03-31 12502
2001-06-30 5939
2001-09-30 179
2001-12-31 1496
2002-03-31 10521
2002-06-30 -13744
2002-09-30 5536
2002-12-31 248
2003-03-31 -6836
2003-06-30 1643
2003-09-30 8592
2003-12-31 -25304
2004-03-31 12686
2004-06-30 682
2004-09-30 -4219
2004-12-31 -20901
2005-03-31 9248
2005-06-30 15586
2005-09-30 -8542
2005-12-31 30110
2006-03-31 435
2006-06-30 -2509
2006-09-30 -3491
2006-12-31 13582
2007-03-31 -3172
2007-06-30 13043
2007-09-30 -11662
2007-12-31 -6714
2008-03-31 -16271
2008-06-30 33764
2008-09-30 25550
2008-12-31 10750
2009-03-31 8884
2009-06-30 -20680
2009-09-30 -32934
2009-12-31 8555
2010-03-31 6062
2010-06-30 6092
2010-09-30 -28388
2010-12-31 16819
2011-03-31 -28809
2011-06-30 -11681
2011-09-30 40202
2011-12-31 7252
2012-03-31 -18929
2012-06-30 13474
2012-09-30 -3044
2012-12-31 11848
2013-03-31 16573
2013-06-30 -20636
2013-09-30 -12639
2013-12-31 -3799
2014-03-31 4936
2014-06-30 -12950
2014-09-30 3936
2014-12-31 10890
2015-03-31 17879
2015-06-30 -5314
2015-09-30 5069
2015-12-31 9147
2016-03-31 12635
2016-06-30 19625
2016-09-30 -5025
2016-12-31 13424
2017-03-31 -2529
2017-06-30 -9389
2017-09-30 -4179
2017-12-31 -958
2018-03-31 -18061
2018-06-30 -2484
2018-09-30 586
2018-12-31 9758
2019-03-31 10643
2019-06-30 13110
2019-09-30 350
2019-12-31 -33125