Quarter	US dollars
1986-09-30	44
1986-12-31	45
1987-03-31	44
1987-06-30	44
1987-09-30	43
1987-12-31	45
1988-03-31	57
1988-06-30	55
1988-09-30	53
1988-12-31	58
1989-03-31	64
1989-06-30	51
1989-09-30	46
1989-12-31	50
1990-03-31	50
1990-06-30	50
1990-09-30	52
1990-12-31	44
1991-03-31	38
1991-06-30	36
1991-09-30	38
1991-12-31	41
1992-03-31	38
1992-06-30	41
1992-09-30	51
1992-12-31	46
1993-03-31	36
1993-06-30	35
1993-09-30	34
1993-12-31	36
1994-03-31	34
1994-06-30	40
1994-09-30	54
1994-12-31	55
1995-03-31	63
1995-06-30	66
1995-09-30	101
1995-12-31	120
1996-03-31	123
1996-06-30	116
1996-09-30	115
1996-12-31	120
1997-03-31	162
1997-06-30	119
1997-09-30	114
1997-12-31	112
1998-03-31	113
1998-06-30	72
1998-09-30	61
1998-12-31	89
1999-03-31	150
1999-06-30	73
1999-09-30	78
1999-12-31	79
2000-03-31	88
2000-06-30	82
2000-09-30	85
2000-12-31	87
2001-03-31	77
2001-06-30	98
2001-09-30	96
2001-12-31	82
2002-03-31	74
2002-06-30	83
2002-09-30	77
2002-12-31	92
2003-03-31	90
2003-06-30	104
2003-09-30	88
2003-12-31	128
2004-03-31	89
2004-06-30	103
2004-09-30	127
2004-12-31	95
2005-03-31	100
2005-06-30	95
2005-09-30	93
2005-12-31	115
2006-03-31	163
2006-06-30	224
2006-09-30	202
2006-12-31	442
2007-03-31	396
2007-06-30	703
2007-09-30	445
2007-12-31	455
2008-03-31	588
2008-06-30	525
2008-09-30	386
2008-12-31	286
2009-03-31	304
2009-06-30	391
2009-09-30	374
2009-12-31	382
2010-03-31	347
2010-06-30	568
2010-09-30	374
2010-12-31	605
2011-03-31	249
2011-06-30	362
2011-09-30	419
2011-12-31	440
2012-03-31	510
2012-06-30	602
2012-09-30	524
2012-12-31	558
2013-03-31	594
2013-06-30	665
2013-09-30	889
2013-12-31	798
2014-03-31	827
2014-06-30	726
2014-09-30	695
2014-12-31	552
2015-03-31	573
2015-06-30	659
2015-09-30	715
2015-12-31	538
2016-03-31	978
2016-06-30	756
2016-09-30	732
2016-12-31	736
2017-03-31	1154
2017-06-30	1194
2017-09-30	1223
2017-12-31	1225
2018-03-31	987
2018-06-30	1282
2018-09-30	1247
2018-12-31	1252
2019-03-31	1257
2019-06-30	1332
2019-09-30	1483
2019-12-31	1467
2020-03-31	1581
2020-06-30	1597
2020-09-30	1567
2020-12-31	1464
2021-03-31	1706
2021-06-30	1624
2021-09-30	1755
2021-12-31	1784
2022-03-31	1679
2022-06-30	1726
2022-09-30	2146
2022-12-31	1565
2023-03-31	1432
2023-06-30	1342
2023-09-30	1223