Quarter	US dollars
1986-09-30	49
1986-12-31	52
1987-03-31	39
1987-06-30	54
1987-09-30	82
1987-12-31	112
1988-03-31	106
1988-06-30	112
1988-09-30	123
1988-12-31	98
1989-03-31	101
1989-06-30	84
1989-09-30	83
1989-12-31	118
1990-03-31	119
1990-06-30	138
1990-09-30	125
1990-12-31	132
1991-03-31	100
1991-06-30	111
1991-09-30	115
1991-12-31	110
1992-03-31	98
1992-06-30	114
1992-09-30	125
1992-12-31	210
1993-03-31	184
1993-06-30	224
1993-09-30	246
1993-12-31	300
1994-03-31	337
1994-06-30	279
1994-09-30	237
1994-12-31	289
1995-03-31	356
1995-06-30	383
1995-09-30	366
1995-12-31	547
1996-03-31	490
1996-06-30	551
1996-09-30	582
1996-12-31	666
1997-03-31	579
1997-06-30	657
1997-09-30	611
1997-12-31	658
1998-03-31	645
1998-06-30	671
1998-09-30	713
1998-12-31	748
1999-03-31	660
1999-06-30	573
1999-09-30	561
1999-12-31	536
2000-03-31	574
2000-06-30	624
2000-09-30	740
2000-12-31	716
2001-03-31	881
2001-06-30	664
2001-09-30	657
2001-12-31	744
2002-03-31	670
2002-06-30	787
2002-09-30	772
2002-12-31	990
2003-03-31	1080
2003-06-30	1146
2003-09-30	1345
2003-12-31	1384
2004-03-31	1503
2004-06-30	1658
2004-09-30	1509
2004-12-31	1501
2005-03-31	1537
2005-06-30	1620
2005-09-30	1534
2005-12-31	1322
2006-03-31	1795
2006-06-30	2538
2006-09-30	1913
2006-12-31	2515
2007-03-31	2116
2007-06-30	1928
2007-09-30	2679
2007-12-31	2418
2008-03-31	2238
2008-06-30	2546
2008-09-30	2003
2008-12-31	3072
2009-03-31	2461
2009-06-30	2200
2009-09-30	2513
2009-12-31	2354
2010-03-31	2194
2010-06-30	2322
2010-09-30	2293
2010-12-31	2186
2011-03-31	2862
2011-06-30	4531
2011-09-30	5202
2011-12-31	4530
2012-03-31	3616
2012-06-30	4041
2012-09-30	4716
2012-12-31	3670
2013-03-31	4146
2013-06-30	5956
2013-09-30	4487
2013-12-31	4295
2014-03-31	4507
2014-06-30	4648
2014-09-30	3234
2014-12-31	4452
2015-03-31	3038
2015-06-30	2675
2015-09-30	2394
2015-12-31	2644
2016-03-31	2958
2016-06-30	2303
2016-09-30	2137
2016-12-31	1853
2017-03-31	1636
2017-06-30	2509
2017-09-30	2439
2017-12-31	2577
2018-03-31	3021
2018-06-30	3074
2018-09-30	2718
2018-12-31	1934
2019-03-31	1875
2019-06-30	1767
2019-09-30	1643
2019-12-31	1381
2020-03-31	1342
2020-06-30	1484
2020-09-30	1696
2020-12-31	1419
2021-03-31	1421
2021-06-30	1101
2021-09-30	903
2021-12-31	1088
2022-03-31	1133
2022-06-30	1104
2022-09-30	1259
2022-12-31	1340
2023-03-31	1591
2023-06-30	1736
2023-09-30	1604