Quarterly US dollars
1986-09-30 6570
1986-12-31 7123
1987-03-31 7620
1987-06-30 7324
1987-09-30 7083
1987-12-31 8217
1988-03-31 8559
1988-06-30 7440
1988-09-30 7642
1988-12-31 6680
1989-03-31 6683
1989-06-30 6462
1989-09-30 7395
1989-12-31 8068
1990-03-31 8757
1990-06-30 8624
1990-09-30 9021
1990-12-31 9407
1991-03-31 9958
1991-06-30 8737
1991-09-30 10025
1991-12-31 9041
1992-03-31 8801
1992-06-30 9812
1992-09-30 10285
1992-12-31 8745
1993-03-31 9230
1993-06-30 10131
1993-09-30 10019
1993-12-31 9995
1994-03-31 10200
1994-06-30 11174
1994-09-30 11744
1994-12-31 11242
1995-03-31 12988
1995-06-30 13365
1995-09-30 15080
1995-12-31 13091
1996-03-31 13218
1996-06-30 12761
1996-09-30 13685
1996-12-31 12053
1997-03-31 11762
1997-06-30 13005
1997-09-30 13175
1997-12-31 11915
1998-03-31 12662
1998-06-30 11880
1998-09-30 11917
1998-12-31 7917
1999-03-31 8037
1999-06-30 6180
1999-09-30 7613
1999-12-31 7634
2000-03-31 7248
2000-06-30 8451
2000-09-30 8494
2000-12-31 8188
2001-03-31 9316
2001-06-30 11251
2001-09-30 13283
2001-12-31 13007
2002-03-31 12208
2002-06-30 12121
2002-09-30 16060
2002-12-31 13764
2003-03-31 17560
2003-06-30 16452
2003-09-30 16853
2003-12-31 16672
2004-03-31 18807
2004-06-30 20872
2004-09-30 19139
2004-12-31 20026
2005-03-31 22803
2005-06-30 20483
2005-09-30 21763
2005-12-31 14427
2006-03-31 19906
2006-06-30 20373
2006-09-30 23434
2006-12-31 21084
2007-03-31 25142
2007-06-30 33159
2007-09-30 28386
2007-12-31 25551
2008-03-31 32386
2008-06-30 29677
2008-09-30 20192
2008-12-31 20008
2009-03-31 23828
2009-06-30 23006
2009-09-30 25391
2009-12-31 18756
2010-03-31 18327
2010-06-30 19445
2010-09-30 18006
2010-12-31 14668
2011-03-31 16455
2011-06-30 16202
2011-09-30 19758
2011-12-31 15300
2012-03-31 17720
2012-06-30 16293
2012-09-30 14964
2012-12-31 14497
2013-03-31 13426
2013-06-30 12962
2013-09-30 14317
2013-12-31 11840
2014-03-31 13503
2014-06-30 14851
2014-09-30 12651
2014-12-31 11425
2015-03-31 11505
2015-06-30 10518
2015-09-30 9605
2015-12-31 7200
2016-03-31 10001
2016-06-30 9653
2016-09-30 9357
2016-12-31 8069
2017-03-31 8621
2017-06-30 8478
2017-09-30 8732
2017-12-31 8225
2018-03-31 9755
2018-06-30 9576
2018-09-30 8769
2018-12-31 7812
2019-03-31 8916
2019-06-30 8556
2019-09-30 7290
2019-12-31 6245
2020-03-31 7242
2020-06-30 9921
2020-09-30 8742
2020-12-31 7174
2021-03-31 7305
2021-06-30 7792
2021-09-30 6645
2021-12-31 5671
2022-03-31 7037
2022-06-30 6890
2022-09-30 6812
2022-12-31 6399
2023-03-31 5784
2023-06-30 4880
2023-09-30 5994