Quarter	US dollars
2004-12-31	1323
2005-03-31	974
2005-06-30	764
2005-09-30	343
2005-12-31	257
2006-03-31	231
2006-06-30	242
2006-09-30	387
2006-12-31	372
2007-03-31	1014
2007-06-30	1890
2007-09-30	4030
2007-12-31	2455
2008-03-31	119
2008-06-30	129
2008-09-30	61
2008-12-31	63
2009-03-31	57
2009-06-30	102
2009-09-30	126
2009-12-31	166
2010-03-31	149
2010-06-30	227
2010-09-30	202
2010-12-31	136
2011-03-31	228
2011-06-30	262
2011-09-30	260
2011-12-31	252
2012-03-31	312
2012-06-30	320
2012-09-30	359
2012-12-31	553
2013-03-31	625
2013-06-30	629
2013-09-30	588
2013-12-31	592
2014-03-31	397
2014-06-30	521
2014-09-30	517
2014-12-31	515
2015-03-31	520
2015-06-30	494
2015-09-30	515
2015-12-31	516
2016-03-31	508
2016-06-30	540
2016-09-30	572
2016-12-31	620
2017-03-31	714
2017-06-30	598
2017-09-30	653
2017-12-31	804
2018-03-31	689
2018-06-30	840
2018-09-30	956
2018-12-31	873
2019-03-31	410
2019-06-30	195
2019-09-30	139
2019-12-31	122
2020-03-31	107
2020-06-30	68
2020-09-30	65
2020-12-31	87
2021-03-31	88
2021-06-30	153
2021-09-30	147
2021-12-31	189
2022-03-31	174
2022-06-30	83
2022-09-30	69
2022-12-31	131
2023-03-31	98
2023-06-30	72
2023-09-30	110