Quarter	US dollars
1986-09-30	232
1986-12-31	210
1987-03-31	215
1987-06-30	197
1987-09-30	206
1987-12-31	192
1988-03-31	185
1988-06-30	172
1988-09-30	170
1988-12-31	170
1989-03-31	153
1989-06-30	140
1989-09-30	136
1989-12-31	145
1990-03-31	140
1990-06-30	144
1990-09-30	113
1990-12-31	109
1991-03-31	90
1991-06-30	87
1991-09-30	77
1991-12-31	116
1992-03-31	107
1992-06-30	109
1992-09-30	178
1992-12-31	147
1993-03-31	142
1993-06-30	122
1993-09-30	130
1993-12-31	123
1994-03-31	167
1994-06-30	169
1994-09-30	182
1994-12-31	192
1995-03-31	168
1995-06-30	131
1995-09-30	134
1995-12-31	116
1996-03-31	160
1996-06-30	203
1996-09-30	192
1996-12-31	235
1997-03-31	257
1997-06-30	231
1997-09-30	323
1997-12-31	308
1998-03-31	332
1998-06-30	367
1998-09-30	446
1998-12-31	404
1999-03-31	351
1999-06-30	371
1999-09-30	363
1999-12-31	338
2000-03-31	293
2000-06-30	327
2000-09-30	388
2000-12-31	376
2001-03-31	400
2001-06-30	396
2001-09-30	428
2001-12-31	390
2002-03-31	336
2002-06-30	403
2002-09-30	419
2002-12-31	414
2003-03-31	364
2003-06-30	353
2003-09-30	326
2003-12-31	381
2004-03-31	326
2004-06-30	348
2004-09-30	544
2004-12-31	528
2005-03-31	515
2005-06-30	504
2005-09-30	494
2005-12-31	540
2006-03-31	459
2006-06-30	583
2006-09-30	814
2006-12-31	570
2007-03-31	669
2007-06-30	745
2007-09-30	613
2007-12-31	593
2008-03-31	640
2008-06-30	615
2008-09-30	652
2008-12-31	544
2009-03-31	473
2009-06-30	555
2009-09-30	531
2009-12-31	426
2010-03-31	349
2010-06-30	425
2010-09-30	330
2010-12-31	310
2011-03-31	220
2011-06-30	340
2011-09-30	418
2011-12-31	356
2012-03-31	368
2012-06-30	204
2012-09-30	272
2012-12-31	274
2013-03-31	245
2013-06-30	201
2013-09-30	122
2013-12-31	130
2014-03-31	152
2014-06-30	147
2014-09-30	133
2014-12-31	79
2015-03-31	95
2015-06-30	83
2015-09-30	79
2015-12-31	77
2016-03-31	74
2016-06-30	134
2016-09-30	142
2016-12-31	180
2017-03-31	213
2017-06-30	236
2017-09-30	192
2017-12-31	189
2018-03-31	217
2018-06-30	229
2018-09-30	199
2018-12-31	199
2019-03-31	204
2019-06-30	278
2019-09-30	202
2019-12-31	188
2020-03-31	182
2020-06-30	192
2020-09-30	210
2020-12-31	220
2021-03-31	183
2021-06-30	236
2021-09-30	214
2021-12-31	183
2022-03-31	196
2022-06-30	164
2022-09-30	162
2022-12-31	149
2023-03-31	129
2023-06-30	126
2023-09-30	130