Quarterly US dollars
1986-09-30 12513
1986-12-31 13012
1987-03-31 12946
1987-06-30 13064
1987-09-30 12704
1987-12-31 12739
1988-03-31 12458
1988-06-30 12255
1988-09-30 12224
1988-12-31 11831
1989-03-31 11596
1989-06-30 11525
1989-09-30 11717
1989-12-31 11225
1990-03-31 9550
1990-06-30 8850
1990-09-30 9491
1990-12-31 10584
1991-03-31 11722
1991-06-30 12990
1991-09-30 12643
1991-12-31 13582
1992-03-31 14461
1992-06-30 12732
1992-09-30 12912
1992-12-31 11679
1993-03-31 12465
1993-06-30 12541
1993-09-30 11765
1993-12-31 12407
1994-03-31 11494
1994-06-30 11735
1994-09-30 12595
1994-12-31 11356
1995-03-31 10014
1995-06-30 9275
1995-09-30 8244
1995-12-31 7974
1996-03-31 7937
1996-06-30 7587
1996-09-30 8198
1996-12-31 7828
1997-03-31 8237
1997-06-30 8240
1997-09-30 7893
1997-12-31 8500
1998-03-31 8946
1998-06-30 8417
1998-09-30 7491
1998-12-31 7834
1999-03-31 8196
1999-06-30 8047
1999-09-30 8652
1999-12-31 8477
2000-03-31 8166
2000-06-30 6880
2000-09-30 7552
2000-12-31 7135
2001-03-31 7391
2001-06-30 6972
2001-09-30 6359
2001-12-31 6806
2002-03-31 6538
2002-06-30 6229
2002-09-30 6122
2002-12-31 5892
2003-03-31 5584
2003-06-30 5552
2003-09-30 5713
2003-12-31 4973
2004-03-31 8818
2004-06-30 5552
2004-09-30 5279
2004-12-31 5433
2005-03-31 5044
2005-06-30 4746
2005-09-30 4525
2005-12-31 4815
2006-03-31 6375
2006-06-30 7257
2006-09-30 8357
2006-12-31 8888
2007-03-31 8846
2007-06-30 8720
2007-09-30 8676
2007-12-31 7466
2008-03-31 7370
2008-06-30 7553
2008-09-30 7631
2008-12-31 6077
2009-03-31 5440
2009-06-30 5003
2009-09-30 6243
2009-12-31 6189
2010-03-31 7479
2010-06-30 6660
2010-09-30 8881
2010-12-31 8613
2011-03-31 9832
2011-06-30 10254
2011-09-30 9505
2011-12-31 12521
2012-03-31 14492
2012-06-30 11450
2012-09-30 11339
2012-12-31 13103
2013-03-31 12937
2013-06-30 10138
2013-09-30 10951
2013-12-31 13942
2014-03-31 10214
2014-06-30 9270
2014-09-30 7666
2014-12-31 7685
2015-03-31 7033
2015-06-30 5988
2015-09-30 5515
2015-12-31 4141
2016-03-31 3300
2016-06-30 3580
2016-09-30 4731
2016-12-31 3527
2017-03-31 3875
2017-06-30 4128
2017-09-30 4643
2017-12-31 3109
2018-03-31 3842
2018-06-30 2962
2018-09-30 3394
2018-12-31 3843
2019-03-31 5025
2019-06-30 4284
2019-09-30 3748
2019-12-31 4478
2020-03-31 4777
2020-06-30 3559
2020-09-30 3003
2020-12-31 7689
2021-03-31 6226
2021-06-30 6100
2021-09-30 6289
2021-12-31 6498
2022-03-31 7286
2022-06-30 7705
2022-09-30 7572
2022-12-31 6033
2023-03-31 7155
2023-06-30 9693
2023-09-30 7643