Quarter	US dollars
1986-09-30	105864
1986-12-31	115875
1987-03-31	128462
1987-06-30	142394
1987-09-30	150038
1987-12-31	173689
1988-03-31	183202
1988-06-30	185281
1988-09-30	204818
1988-12-31	212130
1989-03-31	215091
1989-06-30	194345
1989-09-30	214016
1989-12-31	211952
1990-03-31	205865
1990-06-30	200203
1990-09-30	223008
1990-12-31	223047
1991-03-31	205927
1991-06-30	195101
1991-09-30	193465
1991-12-31	186881
1992-03-31	162938
1992-06-30	154282
1992-09-30	153953
1992-12-31	144393
1993-03-31	138602
1993-06-30	130111
1993-09-30	141553
1993-12-31	142161
1994-03-31	139707
1994-06-30	148777
1994-09-30	161400
1994-12-31	155807
1995-03-31	162965
1995-06-30	157590
1995-09-30	170562
1995-12-31	166498
1996-03-31	149066
1996-06-30	143986
1996-09-30	142568
1996-12-31	150691
1997-03-31	166359
1997-06-30	172792
1997-09-30	154875
1997-12-31	186857
1998-03-31	155368
1998-06-30	158354
1998-09-30	181087
1998-12-31	238909
1999-03-31	179111
1999-06-30	156491
1999-09-30	183165
1999-12-31	180607
2000-03-31	166417
2000-06-30	175581
2000-09-30	180658
2000-12-31	165980
2001-03-31	152220
2001-06-30	157676
2001-09-30	156397
2001-12-31	163534
2002-03-31	149829
2002-06-30	174901
2002-09-30	186555
2002-12-31	223689
2003-03-31	227317
2003-06-30	249627
2003-09-30	224749
2003-12-31	229241
2004-03-31	232328
2004-06-30	253242
2004-09-30	257716
2004-12-31	298327
2005-03-31	234452
2005-06-30	239149
2005-09-30	194923
2005-12-31	185305
2006-03-31	170959
2006-06-30	170791
2006-09-30	171958
2006-12-31	168269
2007-03-31	171437
2007-06-30	164319
2007-09-30	195067
2007-12-31	231944
2008-03-31	302347
2008-06-30	228000
2008-09-30	230328
2008-12-31	198682
2009-03-31	172124
2009-06-30	214376
2009-09-30	215105
2009-12-31	190296
2010-03-31	200249
2010-06-30	194495
2010-09-30	239881
2010-12-31	236781
2011-03-31	232932
2011-06-30	240703
2011-09-30	284518
2011-12-31	306910
2012-03-31	322779
2012-06-30	319526
2012-09-30	313671
2012-12-31	327266
2013-03-31	330872
2013-06-30	310272
2013-09-30	330688
2013-12-31	309098
2014-03-31	301650
2014-06-30	311188
2014-09-30	294571
2014-12-31	281978
2015-03-31	248452
2015-06-30	242458
2015-09-30	243661
2015-12-31	252912
2016-03-31	270911
2016-06-30	297227
2016-09-30	297801
2016-12-31	290485
2017-03-31	287315
2017-06-30	285629
2017-09-30	325526
2017-12-31	300261
2018-03-31	359235
2018-06-30	343913
2018-09-30	361262
2018-12-31	352873
2019-03-31	362356
2019-06-30	377734
2019-09-30	367810
2019-12-31	340945
2020-03-31	403100
2020-06-30	382689
2020-09-30	388905
2020-12-31	366246
2021-03-31	378471
2021-06-30	377258
2021-09-30	363837
2021-12-31	308922
2022-03-31	368769
2022-06-30	365058
2022-09-30	368119
2022-12-31	366818
2023-03-31	395871
2023-06-30	372601
2023-09-30	408509