Quarter	US dollars
1986-09-30	405
1986-12-31	387
1987-03-31	354
1987-06-30	336
1987-09-30	346
1987-12-31	355
1988-03-31	331
1988-06-30	346
1988-09-30	352
1988-12-31	358
1989-03-31	269
1989-06-30	285
1989-09-30	249
1989-12-31	233
1990-03-31	230
1990-06-30	279
1990-09-30	290
1990-12-31	310
1991-03-31	288
1991-06-30	285
1991-09-30	310
1991-12-31	313
1992-03-31	262
1992-06-30	250
1992-09-30	232
1992-12-31	206
1993-03-31	222
1993-06-30	191
1993-09-30	156
1993-12-31	152
1994-03-31	168
1994-06-30	182
1994-09-30	142
1994-12-31	149
1995-03-31	146
1995-06-30	169
1995-09-30	94
1995-12-31	92
1996-03-31	74
1996-06-30	62
1996-09-30	107
1996-12-31	137
1997-03-31	106
1997-06-30	115
1997-09-30	112
1997-12-31	76
1998-03-31	110
1998-06-30	152
1998-09-30	86
1998-12-31	74
1999-03-31	67
1999-06-30	71
1999-09-30	95
1999-12-31	81
2000-03-31	52
2000-06-30	24
2000-09-30	34
2000-12-31	57
2001-03-31	47
2001-06-30	93
2001-09-30	80
2001-12-31	84
2002-03-31	49
2002-06-30	55
2002-09-30	66
2002-12-31	77
2003-03-31	68
2003-06-30	74
2003-09-30	89
2003-12-31	107
2004-03-31	107
2004-06-30	92
2004-09-30	105
2004-12-31	122
2005-03-31	101
2005-06-30	91
2005-09-30	100
2005-12-31	155
2006-03-31	160
2006-06-30	150
2006-09-30	135
2006-12-31	133
2007-03-31	106
2007-06-30	184
2007-09-30	239
2007-12-31	291
2008-03-31	440
2008-06-30	617
2008-09-30	708
2008-12-31	679
2009-03-31	627
2009-06-30	673
2009-09-30	630
2009-12-31	645
2010-03-31	728
2010-06-30	627
2010-09-30	650
2010-12-31	655
2011-03-31	717
2011-06-30	704
2011-09-30	667
2011-12-31	637
2012-03-31	614
2012-06-30	680
2012-09-30	716
2012-12-31	718
2013-03-31	759
2013-06-30	599
2013-09-30	645
2013-12-31	647
2014-03-31	624
2014-06-30	932
2014-09-30	921
2014-12-31	889
2015-03-31	869
2015-06-30	953
2015-09-30	922
2015-12-31	871
2016-03-31	795
2016-06-30	831
2016-09-30	848
2016-12-31	1053
2017-03-31	1007
2017-06-30	1087
2017-09-30	1046
2017-12-31	1052
2018-03-31	1245
2018-06-30	1155
2018-09-30	1102
2018-12-31	1049
2019-03-31	934
2019-06-30	844
2019-09-30	759
2019-12-31	687
2020-03-31	575
2020-06-30	535
2020-09-30	540
2020-12-31	313
2021-03-31	293
2021-06-30	539
2021-09-30	819
2021-12-31	758
2022-03-31	687
2022-06-30	652
2022-09-30	581
2022-12-31	632
2023-03-31	842
2023-06-30	773
2023-09-30	836