Quarter	US dollars
1986-09-30	46
1986-12-31	44
1987-03-31	52
1987-06-30	65
1987-09-30	52
1987-12-31	60
1988-03-31	59
1988-06-30	50
1988-09-30	82
1988-12-31	186
1989-03-31	81
1989-06-30	72
1989-09-30	66
1989-12-31	71
1990-03-31	81
1990-06-30	90
1990-09-30	100
1990-12-31	102
1991-03-31	111
1991-06-30	102
1991-09-30	108
1991-12-31	111
1992-03-31	115
1992-06-30	155
1992-09-30	127
1992-12-31	94
1993-03-31	93
1993-06-30	94
1993-09-30	86
1993-12-31	89
1994-03-31	96
1994-06-30	96
1994-09-30	158
1994-12-31	114
1995-03-31	114
1995-06-30	107
1995-09-30	112
1995-12-31	115
1996-03-31	122
1996-06-30	190
1996-09-30	242
1996-12-31	240
1997-03-31	273
1997-06-30	228
1997-09-30	238
1997-12-31	200
1998-03-31	186
1998-06-30	204
1998-09-30	216
1998-12-31	212
1999-03-31	230
1999-06-30	224
1999-09-30	177
1999-12-31	161
2000-03-31	263
2000-06-30	276
2000-09-30	297
2000-12-31	295
2001-03-31	333
2001-06-30	376
2001-09-30	383
2001-12-31	347
2002-03-31	393
2002-06-30	419
2002-09-30	389
2002-12-31	350
2003-03-31	342
2003-06-30	352
2003-09-30	336
2003-12-31	301
2004-03-31	457
2004-06-30	370
2004-09-30	436
2004-12-31	556
2005-03-31	505
2005-06-30	473
2005-09-30	429
2005-12-31	400
2006-03-31	421
2006-06-30	381
2006-09-30	412
2006-12-31	394
2007-03-31	403
2007-06-30	421
2007-09-30	348
2007-12-31	390
2008-03-31	350
2008-06-30	421
2008-09-30	462
2008-12-31	284
2009-03-31	261
2009-06-30	372
2009-09-30	299
2009-12-31	299
2010-03-31	387
2010-06-30	378
2010-09-30	471
2010-12-31	500
2011-03-31	492
2011-06-30	544
2011-09-30	519
2011-12-31	353
2012-03-31	224
2012-06-30	193
2012-09-30	236
2012-12-31	235
2013-03-31	211
2013-06-30	171
2013-09-30	217
2013-12-31	218
2014-03-31	204
2014-06-30	189
2014-09-30	171
2014-12-31	239
2015-03-31	178
2015-06-30	205
2015-09-30	207
2015-12-31	221
2016-03-31	173
2016-06-30	169
2016-09-30	197
2016-12-31	163
2017-03-31	141
2017-06-30	213
2017-09-30	239
2017-12-31	230
2018-03-31	315
2018-06-30	271
2018-09-30	316
2018-12-31	301
2019-03-31	310
2019-06-30	285
2019-09-30	341
2019-12-31	325
2020-03-31	331
2020-06-30	367
2020-09-30	459
2020-12-31	506
2021-03-31	481
2021-06-30	512
2021-09-30	521
2021-12-31	230
2022-03-31	385
2022-06-30	451
2022-09-30	283
2022-12-31	231
2023-03-31	343
2023-06-30	304
2023-09-30	373