Quarter	US dollars
1986-09-30	178
1986-12-31	165
1987-03-31	300
1987-06-30	169
1987-09-30	149
1987-12-31	221
1988-03-31	274
1988-06-30	198
1988-09-30	172
1988-12-31	440
1989-03-31	386
1989-06-30	491
1989-09-30	254
1989-12-31	671
1990-03-31	648
1990-06-30	596
1990-09-30	615
1990-12-31	489
1991-03-31	432
1991-06-30	728
1991-09-30	747
1991-12-31	1413
1992-03-31	1681
1992-06-30	1907
1992-09-30	1767
1992-12-31	1478
1993-03-31	1463
1993-06-30	1151
1993-09-30	1164
1993-12-31	1167
1994-03-31	1105
1994-06-30	1163
1994-09-30	1172
1994-12-31	1149
1995-03-31	1198
1995-06-30	1421
1995-09-30	1572
1995-12-31	1425
1996-03-31	1449
1996-06-30	1631
1996-09-30	1453
1996-12-31	1434
1997-03-31	1422
1997-06-30	1411
1997-09-30	1123
1997-12-31	1093
1998-03-31	1143
1998-06-30	1286
1998-09-30	1539
1998-12-31	1580
1999-03-31	1524
1999-06-30	1381
1999-09-30	1360
1999-12-31	1365
2000-03-31	1609
2000-06-30	1474
2000-09-30	1438
2000-12-31	1364
2001-03-31	1325
2001-06-30	1220
2001-09-30	1253
2001-12-31	1217
2002-03-31	1697
2002-06-30	1553
2002-09-30	1803
2002-12-31	2008
2003-03-31	2596
2003-06-30	2765
2003-09-30	3116
2003-12-31	3537
2004-03-31	4150
2004-06-30	4474
2004-09-30	5082
2004-12-31	5275
2005-03-31	5692
2005-06-30	5722
2005-09-30	5833
2005-12-31	6312
2006-03-31	6167
2006-06-30	5979
2006-09-30	5733
2006-12-31	5194
2007-03-31	4705
2007-06-30	4297
2007-09-30	4654
2007-12-31	4493
2008-03-31	4487
2008-06-30	3474
2008-09-30	2902
2008-12-31	2405
2009-03-31	2129
2009-06-30	2032
2009-09-30	1908
2009-12-31	2049
2010-03-31	2021
2010-06-30	1766
2010-09-30	1479
2010-12-31	1357
2011-03-31	1380
2011-06-30	1018
2011-09-30	974
2011-12-31	857
2012-03-31	651
2012-06-30	548
2012-09-30	518
2012-12-31	475
2013-03-31	460
2013-06-30	215
2013-09-30	213
2013-12-31	189
2014-03-31	183
2014-06-30	143
2014-09-30	126
2014-12-31	103
2015-03-31	85
2015-06-30	72
2015-09-30	114
2015-12-31	56
2016-03-31	52
2016-06-30	103
2016-09-30	38
2016-12-31	18
2017-03-31	25
2017-06-30	17
2017-09-30	22
2017-12-31	81
2018-03-31	16
2018-06-30	12
2018-09-30	10
2018-12-31	39
2019-03-31	10
2019-06-30	10
2019-09-30	35
2019-12-31	10
2020-03-31	9
2020-06-30	9
2020-09-30	10
2020-12-31	10
2021-03-31	10
2021-06-30	9
2021-09-30	17
2021-12-31	27
2022-03-31	76
2022-06-30	62
2022-09-30	82
2022-12-31	60
2023-03-31	68
2023-06-30	67
2023-09-30	17