Quarter	US dollars
1986-09-30	1434
1986-12-31	1656
1987-03-31	1518
1987-06-30	1642
1987-09-30	1762
1987-12-31	1513
1988-03-31	2148
1988-06-30	2510
1988-09-30	2423
1988-12-31	2290
1989-03-31	2075
1989-06-30	1920
1989-09-30	1950
1989-12-31	2303
1990-03-31	2419
1990-06-30	2628
1990-09-30	2727
1990-12-31	3573
1991-03-31	2623
1991-06-30	2667
1991-09-30	2544
1991-12-31	3529
1992-03-31	1908
1992-06-30	2951
1992-09-30	4333
1992-12-31	3733
1993-03-31	3206
1993-06-30	3584
1993-09-30	4027
1993-12-31	5545
1994-03-31	5642
1994-06-30	5211
1994-09-30	3618
1994-12-31	4034
1995-03-31	3151
1995-06-30	3082
1995-09-30	4949
1995-12-31	4624
1996-03-31	4619
1996-06-30	6064
1996-09-30	6460
1996-12-31	5374
1997-03-31	6288
1997-06-30	5495
1997-09-30	3804
1997-12-31	4675
1998-03-31	5054
1998-06-30	5923
1998-09-30	5293
1998-12-31	4601
1999-03-31	5696
1999-06-30	6018
1999-09-30	6880
1999-12-31	5065
2000-03-31	7167
2000-06-30	7640
2000-09-30	7199
2000-12-31	6854
2001-03-31	7204
2001-06-30	6699
2001-09-30	5774
2001-12-31	5413
2002-03-31	6026
2002-06-30	5853
2002-09-30	5183
2002-12-31	4078
2003-03-31	4616
2003-06-30	4269
2003-09-30	4747
2003-12-31	5066
2004-03-31	9003
2004-06-30	7830
2004-09-30	9080
2004-12-31	10445
2005-03-31	11629
2005-06-30	9802
2005-09-30	9385
2005-12-31	4274
2006-03-31	6885
2006-06-30	6802
2006-09-30	6847
2006-12-31	9569
2007-03-31	13084
2007-06-30	13537
2007-09-30	14650
2007-12-31	14655
2008-03-31	11892
2008-06-30	11615
2008-09-30	7987
2008-12-31	3547
2009-03-31	6002
2009-06-30	4943
2009-09-30	4606
2009-12-31	5430
2010-03-31	6635
2010-06-30	6756
2010-09-30	5494
2010-12-31	6027
2011-03-31	6520
2011-06-30	7544
2011-09-30	8087
2011-12-31	6357
2012-03-31	5836
2012-06-30	6444
2012-09-30	5630
2012-12-31	5475
2013-03-31	6234
2013-06-30	4963
2013-09-30	5579
2013-12-31	5081
2014-03-31	5118
2014-06-30	7352
2014-09-30	7260
2014-12-31	6336
2015-03-31	5735
2015-06-30	6283
2015-09-30	4458
2015-12-31	4679
2016-03-31	4630
2016-06-30	3598
2016-09-30	3909
2016-12-31	3572
2017-03-31	3660
2017-06-30	3973
2017-09-30	3837
2017-12-31	3647
2018-03-31	4186
2018-06-30	3052
2018-09-30	5225
2018-12-31	4158
2019-03-31	5029
2019-06-30	5843
2019-09-30	5194
2019-12-31	5053
2020-03-31	5271
2020-06-30	4338
2020-09-30	4904
2020-12-31	4569
2021-03-31	4790
2021-06-30	5874
2021-09-30	5914
2021-12-31	4989
2022-03-31	5863
2022-06-30	5181
2022-09-30	6775
2022-12-31	5143
2023-03-31	5797
2023-06-30	5676
2023-09-30	4914