Quarter	US dollars
1986-09-30	40
1986-12-31	61
1987-03-31	52
1987-06-30	57
1987-09-30	52
1987-12-31	79
1988-03-31	61
1988-06-30	56
1988-09-30	119
1988-12-31	112
1989-03-31	129
1989-06-30	112
1989-09-30	86
1989-12-31	120
1990-03-31	123
1990-06-30	156
1990-09-30	127
1990-12-31	179
1991-03-31	82
1991-06-30	115
1991-09-30	102
1991-12-31	124
1992-03-31	151
1992-06-30	192
1992-09-30	159
1992-12-31	108
1993-03-31	77
1993-06-30	129
1993-09-30	95
1993-12-31	98
1994-03-31	86
1994-06-30	92
1994-09-30	97
1994-12-31	78
1995-03-31	90
1995-06-30	102
1995-09-30	96
1995-12-31	102
1996-03-31	74
1996-06-30	81
1996-09-30	83
1996-12-31	125
1997-03-31	92
1997-06-30	143
1997-09-30	133
1997-12-31	102
1998-03-31	72
1998-06-30	120
1998-09-30	76
1998-12-31	164
1999-03-31	211
1999-06-30	219
1999-09-30	306
1999-12-31	163
2000-03-31	172
2000-06-30	119
2000-09-30	116
2000-12-31	109
2001-03-31	70
2001-06-30	42
2001-09-30	52
2001-12-31	73
2002-03-31	59
2002-06-30	37
2002-09-30	50
2002-12-31	59
2003-03-31	47
2003-06-30	119
2003-09-30	88
2003-12-31	241
2004-03-31	244
2004-06-30	192
2004-09-30	167
2004-12-31	329
2005-03-31	226
2005-06-30	979
2005-09-30	282
2005-12-31	633
2006-03-31	679
2006-06-30	1235
2006-09-30	1606
2006-12-31	2494
2007-03-31	2401
2007-06-30	2018
2007-09-30	1951
2007-12-31	2817
2008-03-31	4492
2008-06-30	12349
2008-09-30	10160
2008-12-31	5352
2009-03-31	5135
2009-06-30	5202
2009-09-30	1679
2009-12-31	3022
2010-03-31	2739
2010-06-30	2769
2010-09-30	3338
2010-12-31	2784
2011-03-31	1307
2011-06-30	1398
2011-09-30	1537
2011-12-31	1470
2012-03-31	2295
2012-06-30	1280
2012-09-30	3640
2012-12-31	3702
2013-03-31	4950
2013-06-30	4940
2013-09-30	5295
2013-12-31	5520
2014-03-31	4564
2014-06-30	4544
2014-09-30	4835
2014-12-31	4383
2015-03-31	3904
2015-06-30	4189
2015-09-30	5050
2015-12-31	5970
2016-03-31	5048
2016-06-30	4822
2016-09-30	4718
2016-12-31	4648
2017-03-31	4733
2017-06-30	4895
2017-09-30	925
2017-12-31	787
2018-03-31	907
2018-06-30	718
2018-09-30	586
2018-12-31	507
2019-03-31	443
2019-06-30	452
2019-09-30	411
2019-12-31	400
2020-03-31	319
2020-06-30	326
2020-09-30	374
2020-12-31	388
2021-03-31	381
2021-06-30	393
2021-09-30	339
2021-12-31	353
2022-03-31	336
2022-06-30	313
2022-09-30	293
2022-12-31	288
2023-03-31	290
2023-06-30	283
2023-09-30	271