Quarterly US dollars
1986-12-31 16176
1987-03-31 10358
1987-06-30 -133
1987-09-30 449
1987-12-31 7630
1988-03-31 113
1988-06-30 4761
1988-09-30 -732
1988-12-31 5248
1989-03-31 670
1989-06-30 -6241
1989-09-30 20052
1989-12-31 -369
1990-03-31 18884
1990-06-30 9963
1990-09-30 4947
1990-12-31 -16839
1991-03-31 29799
1991-06-30 16701
1991-09-30 -9125
1991-12-31 -18176
1992-03-31 9572
1992-06-30 1001
1992-09-30 3659
1992-12-31 -61412
1993-03-31 3344
1993-06-30 10575
1993-09-30 10507
1993-12-31 3493
1994-03-31 10261
1994-06-30 7909
1994-09-30 4912
1994-12-31 10375
1995-03-31 8598
1995-06-30 -607
1995-09-30 -3874
1995-12-31 4044
1996-03-31 11778
1996-06-30 3853
1996-09-30 9161
1996-12-31 9109
1997-03-31 18111
1997-06-30 12653
1997-09-30 -78615
1997-12-31 -29042
1998-03-31 1639
1998-06-30 28948
1998-09-30 10213
1998-12-31 -21367
1999-03-31 151265
1999-06-30 47966
1999-09-30 -68719
1999-12-31 -27264
2000-03-31 35101
2000-06-30 22355
2000-09-30 6588
2000-12-31 -8366
2001-03-31 35072
2001-06-30 -5073
2001-09-30 2285
2001-12-31 14548
2002-03-31 9062
2002-06-30 -12725
2002-09-30 14844
2002-12-31 21440
2003-03-31 -3168
2003-06-30 1090
2003-09-30 36572
2003-12-31 -564
2004-03-31 46012
2004-06-30 23489
2004-09-30 4606
2004-12-31 -15427
2005-03-31 17286
2005-06-30 22403
2005-09-30 28179
2005-12-31 15362
2006-03-31 52780
2006-06-30 39303
2006-09-30 76721
2006-12-31 -2944
2007-03-31 77170
2007-06-30 54822
2007-09-30 53775
2007-12-31 -18929
2008-03-31 68145
2008-06-30 -56753
2008-09-30 93381
2008-12-31 -25582
2009-03-31 72081
2009-06-30 8053
2009-09-30 65455
2009-12-31 15565
2010-03-31 18515
2010-06-30 -67592
2010-09-30 42276
2010-12-31 -37891
2011-03-31 15329
2011-06-30 -16509
2011-09-30 -58988
2011-12-31 -39027
2012-03-31 8350
2012-06-30 -13585
2012-09-30 -35926
2012-12-31 -17116
2013-03-31 4112
2013-06-30 -55727
2013-09-30 -37425
2013-12-31 -31739
2014-03-31 11055
2014-06-30 -1787
2014-09-30 31644
2014-12-31 -7245
2015-03-31 30961
2015-06-30 -23916
2015-09-30 28075
2015-12-31 -21332
2016-03-31 19987
2016-06-30 65006
2016-09-30 42033
2016-12-31 -5161
2017-03-31 12139
2017-06-30 -4862
2017-09-30 1629
2017-12-31 -923
2018-03-31 16906
2018-06-30 20835
2018-09-30 7762
2018-12-31 28232
2019-03-31 -34860
2019-06-30 42971
2019-09-30 50823
2019-12-31 -65109