Quarter	US dollars
1986-09-30	753
1986-12-31	692
1987-03-31	741
1987-06-30	653
1987-09-30	688
1987-12-31	734
1988-03-31	752
1988-06-30	826
1988-09-30	847
1988-12-31	830
1989-03-31	893
1989-06-30	859
1989-09-30	952
1989-12-31	906
1990-03-31	996
1990-06-30	976
1990-09-30	1076
1990-12-31	998
1991-03-31	955
1991-06-30	1045
1991-09-30	1089
1991-12-31	1044
1992-03-31	1047
1992-06-30	1093
1992-09-30	947
1992-12-31	880
1993-03-31	965
1993-06-30	827
1993-09-30	743
1993-12-31	711
1994-03-31	619
1994-06-30	569
1994-09-30	573
1994-12-31	522
1995-03-31	535
1995-06-30	491
1995-09-30	471
1995-12-31	440
1996-03-31	421
1996-06-30	452
1996-09-30	460
1996-12-31	453
1997-03-31	443
1997-06-30	462
1997-09-30	428
1997-12-31	607
1998-03-31	413
1998-06-30	401
1998-09-30	391
1998-12-31	397
1999-03-31	425
1999-06-30	386
1999-09-30	414
1999-12-31	356
2000-03-31	456
2000-06-30	385
2000-09-30	372
2000-12-31	354
2001-03-31	417
2001-06-30	354
2001-09-30	377
2001-12-31	314
2002-03-31	319
2002-06-30	265
2002-09-30	257
2002-12-31	259
2003-03-31	247
2003-06-30	299
2003-09-30	272
2003-12-31	287
2004-03-31	328
2004-06-30	313
2004-09-30	354
2004-12-31	384
2005-03-31	388
2005-06-30	406
2005-09-30	365
2005-12-31	369
2006-03-31	384
2006-06-30	412
2006-09-30	439
2006-12-31	385
2007-03-31	369
2007-06-30	364
2007-09-30	405
2007-12-31	339
2008-03-31	385
2008-06-30	501
2008-09-30	475
2008-12-31	384
2009-03-31	314
2009-06-30	336
2009-09-30	425
2009-12-31	415
2010-03-31	403
2010-06-30	397
2010-09-30	442
2010-12-31	595
2011-03-31	475
2011-06-30	507
2011-09-30	301
2011-12-31	294
2012-03-31	463
2012-06-30	502
2012-09-30	435
2012-12-31	466
2013-03-31	413
2013-06-30	381
2013-09-30	365
2013-12-31	344
2014-03-31	527
2014-06-30	334
2014-09-30	329
2014-12-31	167
2015-03-31	142
2015-06-30	98
2015-09-30	53
2015-12-31	71
2016-03-31	56
2016-06-30	50
2016-09-30	45
2016-12-31	45
2017-03-31	42
2017-06-30	43
2017-09-30	39
2017-12-31	44
2018-03-31	58
2018-06-30	86
2018-09-30	61
2018-12-31	49
2019-03-31	61
2019-06-30	66
2019-09-30	79
2019-12-31	86
2020-03-31	90
2020-06-30	82
2020-09-30	79
2020-12-31	50
2021-03-31	162
2021-06-30	173
2021-09-30	243
2021-12-31	319
2022-03-31	339
2022-06-30	404
2022-09-30	406
2022-12-31	422
2023-03-31	456
2023-06-30	474
2023-09-30	488