Quarter	US dollars
1986-09-30	26788
1986-12-31	24993
1987-03-31	25620
1987-06-30	27071
1987-09-30	24745
1987-12-31	24995
1988-03-31	25332
1988-06-30	25914
1988-09-30	28356
1988-12-31	26478
1989-03-31	21765
1989-06-30	25323
1989-09-30	27986
1989-12-31	26727
1990-03-31	27705
1990-06-30	28994
1990-09-30	32984
1990-12-31	33526
1991-03-31	30534
1991-06-30	30798
1991-09-30	29228
1991-12-31	27622
1992-03-31	27154
1992-06-30	34226
1992-09-30	33598
1992-12-31	31244
1993-03-31	30503
1993-06-30	31919
1993-09-30	30677
1993-12-31	33119
1994-03-31	33202
1994-06-30	36736
1994-09-30	38023
1994-12-31	34636
1995-03-31	39244
1995-06-30	43858
1995-09-30	45806
1995-12-31	42369
1996-03-31	42118
1996-06-30	46200
1996-09-30	46913
1996-12-31	49439
1997-03-31	45773
1997-06-30	55040
1997-09-30	51180
1997-12-31	49145
1998-03-31	35255
1998-06-30	27949
1998-09-30	26820
1998-12-31	29982
1999-03-31	23496
1999-06-30	26385
1999-09-30	27308
1999-12-31	31217
2000-03-31	28502
2000-06-30	24412
2000-09-30	23311
2000-12-31	26854
2001-03-31	34704
2001-06-30	30909
2001-09-30	36210
2001-12-31	37748
2002-03-31	37418
2002-06-30	31610
2002-09-30	41364
2002-12-31	35490
2003-03-31	40027
2003-06-30	42455
2003-09-30	47076
2003-12-31	39073
2004-03-31	43140
2004-06-30	45931
2004-09-30	46013
2004-12-31	39852
2005-03-31	42537
2005-06-30	40522
2005-09-30	38766
2005-12-31	34950
2006-03-31	40713
2006-06-30	46274
2006-09-30	45517
2006-12-31	40064
2007-03-31	35825
2007-06-30	44428
2007-09-30	46741
2007-12-31	58555
2008-03-31	66439
2008-06-30	68095
2008-09-30	62847
2008-12-31	55344
2009-03-31	46555
2009-06-30	40754
2009-09-30	40538
2009-12-31	48522
2010-03-31	45884
2010-06-30	62732
2010-09-30	70474
2010-12-31	74488
2011-03-31	79656
2011-06-30	87920
2011-09-30	93844
2011-12-31	87941
2012-03-31	81287
2012-06-30	84092
2012-09-30	84860
2012-12-31	86128
2013-03-31	92574
2013-06-30	80896
2013-09-30	84113
2013-12-31	97191
2014-03-31	108549
2014-06-30	106846
2014-09-30	109773
2014-12-31	100934
2015-03-31	97326
2015-06-30	92217
2015-09-30	86511
2015-12-31	89830
2016-03-31	72088
2016-06-30	72234
2016-09-30	73610
2016-12-31	69686
2017-03-31	65328
2017-06-30	70729
2017-09-30	80724
2017-12-31	87722
2018-03-31	96697
2018-06-30	91053
2018-09-30	80101
2018-12-31	88272
2019-03-31	91275
2019-06-30	96532
2019-09-30	86826
2019-12-31	99609
2020-03-31	88579
2020-06-30	86701
2020-09-30	88102
2020-12-31	97804
2021-03-31	98370
2021-06-30	102764
2021-09-30	98577
2021-12-31	100166
2022-03-31	116951
2022-06-30	111480
2022-09-30	113402
2022-12-31	115650
2023-03-31	120612
2023-06-30	115114
2023-09-30	94891