Quarter	US dollars
2004-12-31	56
2005-03-31	55
2005-06-30	54
2005-09-30	9
2005-12-31	9
2006-03-31	12
2006-06-30	17
2006-09-30	24
2006-12-31	68
2007-03-31	163
2007-06-30	259
2007-09-30	132
2007-12-31	207
2008-03-31	260
2008-06-30	265
2008-09-30	519
2008-12-31	344
2009-03-31	234
2009-06-30	140
2009-09-30	131
2009-12-31	255
2010-03-31	379
2010-06-30	805
2010-09-30	1533
2010-12-31	4407
2011-03-31	4114
2011-06-30	3838
2011-09-30	4368
2011-12-31	4742
2012-03-31	20029
2012-06-30	19342
2012-09-30	17995
2012-12-31	23238
2013-03-31	43125
2013-06-30	43126
2013-09-30	39270
2013-12-31	26884
2014-03-31	31544
2014-06-30	27976
2014-09-30	31600
2014-12-31	33044
2015-03-31	29412
2015-06-30	30332
2015-09-30	26357
2015-12-31	23245
2016-03-31	23985
2016-06-30	20587
2016-09-30	19685
2016-12-31	18520
2017-03-31	17582
2017-06-30	16306
2017-09-30	14308
2017-12-31	13218
2018-03-31	12930
2018-06-30	12495
2018-09-30	11728
2018-12-31	10826
2019-03-31	10576
2019-06-30	10326
2019-09-30	9584
2019-12-31	8638
2020-03-31	9511
2020-06-30	8394
2020-09-30	7814
2020-12-31	7042
2021-03-31	6644
2021-06-30	6912
2021-09-30	6057
2021-12-31	6426
2022-03-31	6166
2022-06-30	5571
2022-09-30	487
2022-12-31	401
2023-03-31	350
2023-06-30	254
2023-09-30	252