Quarter	US dollars
2004-12-31	46
2005-03-31	23
2005-06-30	27
2005-09-30	30
2005-12-31	34
2006-03-31	26
2006-06-30	35
2006-09-30	43
2006-12-31	33
2007-03-31	35
2007-06-30	70
2007-09-30	57
2007-12-31	56
2008-03-31	42
2008-06-30	68
2008-09-30	75
2008-12-31	37
2009-03-31	36
2009-06-30	64
2009-09-30	133
2009-12-31	82
2010-03-31	20
2010-06-30	30
2010-09-30	3962
2010-12-31	5515
2011-03-31	5796
2011-06-30	6166
2011-09-30	6788
2011-12-31	5736
2012-03-31	5103
2012-06-30	4252
2012-09-30	3818
2012-12-31	4231
2013-03-31	9681
2013-06-30	9193
2013-09-30	8596
2013-12-31	6439
2014-03-31	5997
2014-06-30	5729
2014-09-30	4962
2014-12-31	5227
2015-03-31	5198
2015-06-30	5007
2015-09-30	4703
2015-12-31	4827
2016-03-31	4726
2016-06-30	4405
2016-09-30	4230
2016-12-31	5189
2017-03-31	4366
2017-06-30	4152
2017-09-30	3323
2017-12-31	1148
2018-03-31	1
2018-06-30	1
2018-09-30	1
2018-12-31	1
2019-03-31	1
2019-06-30	1
2019-09-30	1
2019-12-31	0
2020-03-31	0
2020-06-30	0
2020-09-30	0
2020-12-31	0
2021-03-31	0
2021-06-30	0
2021-09-30	0
2021-12-31	0
2022-03-31	0
2022-06-30	0
2022-09-30	0
2022-12-31	0
2023-03-31	0
2023-06-30	0
2023-09-30	0