Quarter	US dollars
2004-12-31	248
2005-03-31	200
2005-06-30	136
2005-09-30	262
2005-12-31	276
2006-03-31	333
2006-06-30	381
2006-09-30	338
2006-12-31	292
2007-03-31	310
2007-06-30	321
2007-09-30	573
2007-12-31	352
2008-03-31	360
2008-06-30	346
2008-09-30	348
2008-12-31	352
2009-03-31	414
2009-06-30	435
2009-09-30	443
2009-12-31	441
2010-03-31	475
2010-06-30	382
2010-09-30	392
2010-12-31	413
2011-03-31	481
2011-06-30	478
2011-09-30	450
2011-12-31	462
2012-03-31	556
2012-06-30	515
2012-09-30	415
2012-12-31	396
2013-03-31	536
2013-06-30	499
2013-09-30	476
2013-12-31	502
2014-03-31	395
2014-06-30	398
2014-09-30	509
2014-12-31	534
2015-03-31	462
2015-06-30	434
2015-09-30	360
2015-12-31	341
2016-03-31	344
2016-06-30	340
2016-09-30	307
2016-12-31	285
2017-03-31	303
2017-06-30	27
2017-09-30	46
2017-12-31	9
2018-03-31	286
2018-06-30	234
2018-09-30	230
2018-12-31	138
2019-03-31	154
2019-06-30	135
2019-09-30	1
2019-12-31	12
2020-03-31	5
2020-06-30	7
2020-09-30	10
2020-12-31	7
2021-03-31	6
2021-06-30	0
2021-09-30	7
2021-12-31	8
2022-03-31	1
2022-06-30	2
2022-09-30	3
2022-12-31	1
2023-03-31	12
2023-06-30	2
2023-09-30	10