Quarter	US dollars
1986-09-30	34714
1986-12-31	32579
1987-03-31	44408
1987-06-30	43609
1987-09-30	45377
1987-12-31	52384
1988-03-31	52794
1988-06-30	47920
1988-09-30	46280
1988-12-31	61732
1989-03-31	55793
1989-06-30	49838
1989-09-30	59072
1989-12-31	61365
1990-03-31	63022
1990-06-30	70408
1990-09-30	77134
1990-12-31	73795
1991-03-31	87601
1991-06-30	80370
1991-09-30	74290
1991-12-31	78320
1992-03-31	68252
1992-06-30	65845
1992-09-30	74975
1992-12-31	75480
1993-03-31	71883
1993-06-30	77631
1993-09-30	80194
1993-12-31	78975
1994-03-31	77836
1994-06-30	86925
1994-09-30	93222
1994-12-31	100114
1995-03-31	150995
1995-06-30	149807
1995-09-30	152063
1995-12-31	151187
1996-03-31	155201
1996-06-30	155574
1996-09-30	162246
1996-12-31	177832
1997-03-31	183575
1997-06-30	199621
1997-09-30	102217
1997-12-31	105380
1998-03-31	102640
1998-06-30	107399
1998-09-30	128699
1998-12-31	110108
1999-03-31	193609
1999-06-30	232866
1999-09-30	175498
1999-12-31	140344
2000-03-31	168013
2000-06-30	182076
2000-09-30	172047
2000-12-31	166582
2001-03-31	183003
2001-06-30	172394
2001-09-30	176457
2001-12-31	184094
2002-03-31	192918
2002-06-30	202161
2002-09-30	203918
2002-12-31	227248
2003-03-31	223052
2003-06-30	233666
2003-09-30	262300
2003-12-31	293708
2004-03-31	337527
2004-06-30	337358
2004-09-30	338043
2004-12-31	345342
2005-03-31	342520
2005-06-30	325999
2005-09-30	344886
2005-12-31	332872
2006-03-31	374598
2006-06-30	427831
2006-09-30	495248
2006-12-31	505309
2007-03-31	576325
2007-06-30	639200
2007-09-30	717984
2007-12-31	711648
2008-03-31	811826
2008-06-30	728784
2008-09-30	701391
2008-12-31	586141
2009-03-31	666740
2009-06-30	751839
2009-09-30	805458
2009-12-31	784260
2010-03-31	738856
2010-06-30	637774
2010-09-30	721008
2010-12-31	647433
2011-03-31	681825
2011-06-30	662052
2011-09-30	594135
2011-12-31	531464
2012-03-31	552140
2012-06-30	523193
2012-09-30	519837
2012-12-31	506345
2013-03-31	474660
2013-06-30	442260
2013-09-30	451842
2013-12-31	434993
2014-03-31	451822
2014-06-30	461437
2014-09-30	459485
2014-12-31	435930
2015-03-31	423538
2015-06-30	434574
2015-09-30	458561
2015-12-31	399681
2016-03-31	405058
2016-06-30	402403
2016-09-30	426193
2016-12-31	399636
2017-03-31	409594
2017-06-30	423181
2017-09-30	453951
2017-12-31	463096
2018-03-31	503757
2018-06-30	512473
2018-09-30	503626
2018-12-31	488471
2019-03-31	469451
2019-06-30	472733
2019-09-30	514562
2019-12-31	512370
2020-03-31	514220
2020-06-30	497495
2020-09-30	526660
2020-12-31	549032
2021-03-31	561840
2021-06-30	557009
2021-09-30	535867
2021-12-31	572928
2022-03-31	525695
2022-06-30	510159
2022-09-30	465821
2022-12-31	508014
2023-03-31	520616
2023-06-30	553453
2023-09-30	553956