Quarter	US dollars
2004-12-31	12
2005-03-31	26
2005-06-30	7
2005-09-30	16
2005-12-31	34
2006-03-31	19
2006-06-30	13
2006-09-30	30
2006-12-31	18
2007-03-31	14
2007-06-30	2
2007-09-30	35
2007-12-31	60
2008-03-31	151
2008-06-30	589
2008-09-30	435
2008-12-31	280
2009-03-31	421
2009-06-30	114
2009-09-30	128
2009-12-31	137
2010-03-31	70
2010-06-30	542
2010-09-30	295
2010-12-31	243
2011-03-31	93
2011-06-30	64
2011-09-30	98
2011-12-31	116
2012-03-31	69
2012-06-30	99
2012-09-30	82
2012-12-31	70
2013-03-31	58
2013-06-30	38
2013-09-30	39
2013-12-31	212
2014-03-31	137
2014-06-30	128
2014-09-30	133
2014-12-31	42
2015-03-31	36
2015-06-30	42
2015-09-30	12
2015-12-31	12
2016-03-31	3
2016-06-30	3
2016-09-30	16
2016-12-31	14
2017-03-31	15
2017-06-30	14
2017-09-30	15
2017-12-31	14
2018-03-31	27
2018-06-30	20
2018-09-30	30
2018-12-31	28
2019-03-31	27
2019-06-30	34
2019-09-30	32
2019-12-31	32
2020-03-31	35
2020-06-30	9
2020-09-30	8
2020-12-31	8
2021-03-31	8
2021-06-30	10
2021-09-30	9
2021-12-31	20
2022-03-31	20
2022-06-30	19
2022-09-30	19
2022-12-31	12
2023-03-31	12
2023-06-30	13
2023-09-30	12