Quarter	US dollars
1986-09-30	1341
1986-12-31	993
1987-03-31	814
1987-06-30	830
1987-09-30	871
1987-12-31	918
1988-03-31	1048
1988-06-30	989
1988-09-30	864
1988-12-31	1741
1989-03-31	1202
1989-06-30	979
1989-09-30	1006
1989-12-31	1017
1990-03-31	1173
1990-06-30	1274
1990-09-30	1481
1990-12-31	1302
1991-03-31	1216
1991-06-30	1019
1991-09-30	1133
1991-12-31	1225
1992-03-31	1058
1992-06-30	1088
1992-09-30	1068
1992-12-31	1577
1993-03-31	1949
1993-06-30	1936
1993-09-30	1957
1993-12-31	2128
1994-03-31	2630
1994-06-30	1098
1994-09-30	1268
1994-12-31	2102
1995-03-31	2419
1995-06-30	5788
1995-09-30	8933
1995-12-31	10894
1996-03-31	11054
1996-06-30	10400
1996-09-30	9578
1996-12-31	7765
1997-03-31	9291
1997-06-30	6102
1997-09-30	8497
1997-12-31	4545
1998-03-31	9610
1998-06-30	6537
1998-09-30	6898
1998-12-31	6243
1999-03-31	3678
1999-06-30	5122
1999-09-30	5544
1999-12-31	4486
2000-03-31	5211
2000-06-30	3855
2000-09-30	4251
2000-12-31	4936
2001-03-31	4384
2001-06-30	4463
2001-09-30	5700
2001-12-31	3498
2002-03-31	3899
2002-06-30	3399
2002-09-30	2730
2002-12-31	3050
2003-03-31	4210
2003-06-30	4702
2003-09-30	6314
2003-12-31	5803
2004-03-31	5914
2004-06-30	6884
2004-09-30	5986
2004-12-31	7996
2005-03-31	10475
2005-06-30	7887
2005-09-30	8397
2005-12-31	8177
2006-03-31	7135
2006-06-30	5605
2006-09-30	9896
2006-12-31	7405
2007-03-31	6816
2007-06-30	9933
2007-09-30	6158
2007-12-31	4608
2008-03-31	3111
2008-06-30	3337
2008-09-30	3324
2008-12-31	3697
2009-03-31	2588
2009-06-30	2867
2009-09-30	3710
2009-12-31	4434
2010-03-31	3282
2010-06-30	5227
2010-09-30	9310
2010-12-31	8263
2011-03-31	9403
2011-06-30	11022
2011-09-30	7846
2011-12-31	5277
2012-03-31	6179
2012-06-30	5131
2012-09-30	3234
2012-12-31	4149
2013-03-31	4540
2013-06-30	8134
2013-09-30	12735
2013-12-31	12751
2014-03-31	12369
2014-06-30	12132
2014-09-30	13040
2014-12-31	13601
2015-03-31	12530
2015-06-30	14583
2015-09-30	13721
2015-12-31	19581
2016-03-31	6041
2016-06-30	5570
2016-09-30	5078
2016-12-31	5032
2017-03-31	5102
2017-06-30	4282
2017-09-30	3375
2017-12-31	2903
2018-03-31	3023
2018-06-30	4396
2018-09-30	6623
2018-12-31	6587
2019-03-31	5784
2019-06-30	5802
2019-09-30	9318
2019-12-31	6463
2020-03-31	8226
2020-06-30	7104
2020-09-30	6736
2020-12-31	10751
2021-03-31	11799
2021-06-30	11138
2021-09-30	10806
2021-12-31	23919
2022-03-31	17658
2022-06-30	4324
2022-09-30	21070
2022-12-31	22577
2023-03-31	23017
2023-06-30	20648
2023-09-30	4575