Quarterly US dollars
1986-09-30 6546
1986-12-31 7426
1987-03-31 6193
1987-06-30 6075
1987-09-30 7256
1987-12-31 8359
1988-03-31 7265
1988-06-30 6948
1988-09-30 7570
1988-12-31 7296
1989-03-31 7917
1989-06-30 8351
1989-09-30 7589
1989-12-31 7832
1990-03-31 8616
1990-06-30 7595
1990-09-30 8266
1990-12-31 8812
1991-03-31 6351
1991-06-30 5593
1991-09-30 6292
1991-12-31 5887
1992-03-31 6801
1992-06-30 8743
1992-09-30 8259
1992-12-31 9248
1993-03-31 7515
1993-06-30 7624
1993-09-30 6095
1993-12-31 6005
1994-03-31 7376
1994-06-30 8615
1994-09-30 9337
1994-12-31 8467
1995-03-31 7845
1995-06-30 7880
1995-09-30 6287
1995-12-31 5494
1996-03-31 4413
1996-06-30 5308
1996-09-30 4872
1996-12-31 6272
1997-03-31 5614
1997-06-30 6411
1997-09-30 6291
1997-12-31 7609
1998-03-31 5849
1998-06-30 6177
1998-09-30 6599
1998-12-31 9388
1999-03-31 7215
1999-06-30 6255
1999-09-30 8398
1999-12-31 6121
2000-03-31 7302
2000-06-30 8431
2000-09-30 7623
2000-12-31 7816
2001-03-31 7491
2001-06-30 9439
2001-09-30 12187
2001-12-31 11195
2002-03-31 10267
2002-06-30 11521
2002-09-30 12038
2002-12-31 11862
2003-03-31 11293
2003-06-30 11048
2003-09-30 7997
2003-12-31 8905
2004-03-31 9285
2004-06-30 10567
2004-09-30 10975
2004-12-31 13711
2005-03-31 11670
2005-06-30 9616
2005-09-30 8315
2005-12-31 10356
2006-03-31 10862
2006-06-30 11217
2006-09-30 11980
2006-12-31 12497
2007-03-31 15191
2007-06-30 15660
2007-09-30 13990
2007-12-31 16932
2008-03-31 14489
2008-06-30 16050
2008-09-30 11881
2008-12-31 13945
2009-03-31 9035
2009-06-30 9130
2009-09-30 8493
2009-12-31 5608
2010-03-31 7991
2010-06-30 6522
2010-09-30 7134
2010-12-31 7873
2011-03-31 9725
2011-06-30 7118
2011-09-30 6904
2011-12-31 7638
2012-03-31 7711
2012-06-30 5901
2012-09-30 6882
2012-12-31 4820
2013-03-31 6300
2013-06-30 5403
2013-09-30 6072
2013-12-31 6470
2014-03-31 5002
2014-06-30 4959
2014-09-30 4814
2014-12-31 4341
2015-03-31 3565
2015-06-30 3222
2015-09-30 3562
2015-12-31 3546
2016-03-31 3678
2016-06-30 3590
2016-09-30 3580
2016-12-31 4164
2017-03-31 4395
2017-06-30 4207
2017-09-30 4638
2017-12-31 4320
2018-03-31 4927
2018-06-30 5299
2018-09-30 5410
2018-12-31 3919
2019-03-31 4647
2019-06-30 5425
2019-09-30 5667
2019-12-31 6495
2020-03-31 5219
2020-06-30 4276
2020-09-30 4570
2020-12-31 4067
2021-03-31 4907
2021-06-30 4420
2021-09-30 5012
2021-12-31 4809
2022-03-31 5001
2022-06-30 5497
2022-09-30 5598
2022-12-31 5210
2023-03-31 6284
2023-06-30 7355
2023-09-30 6828