Quarter	US dollars
2004-12-31	380
2005-03-31	40
2005-06-30	177
2005-09-30	34
2005-12-31	88
2006-03-31	59
2006-06-30	55
2006-09-30	37
2006-12-31	68
2007-03-31	88
2007-06-30	20
2007-09-30	59
2007-12-31	74
2008-03-31	89
2008-06-30	52
2008-09-30	57
2008-12-31	62
2009-03-31	27
2009-06-30	16
2009-09-30	82
2009-12-31	24
2010-03-31	52
2010-06-30	628
2010-09-30	95
2010-12-31	59
2011-03-31	74
2011-06-30	80
2011-09-30	171
2011-12-31	264
2012-03-31	435
2012-06-30	420
2012-09-30	436
2012-12-31	428
2013-03-31	381
2013-06-30	416
2013-09-30	542
2013-12-31	469
2014-03-31	510
2014-06-30	378
2014-09-30	374
2014-12-31	404
2015-03-31	254
2015-06-30	300
2015-09-30	188
2015-12-31	153
2016-03-31	167
2016-06-30	165
2016-09-30	90
2016-12-31	86
2017-03-31	151
2017-06-30	170
2017-09-30	185
2017-12-31	130
2018-03-31	119
2018-06-30	98
2018-09-30	98
2018-12-31	96
2019-03-31	96
2019-06-30	5
2019-09-30	6
2019-12-31	4
2020-03-31	5
2020-06-30	9
2020-09-30	8
2020-12-31	8
2021-03-31	4
2021-06-30	4
2021-09-30	4
2021-12-31	4
2022-03-31	4
2022-06-30	4
2022-09-30	3
2022-12-31	3
2023-03-31	3
2023-06-30	4
2023-09-30	3