Quarter	US dollars
2004-12-31	478
2005-03-31	98
2005-06-30	88
2005-09-30	90
2005-12-31	62
2006-03-31	57
2006-06-30	57
2006-09-30	52
2006-12-31	51
2007-03-31	51
2007-06-30	46
2007-09-30	84
2007-12-31	96
2008-03-31	95
2008-06-30	115
2008-09-30	100
2008-12-31	92
2009-03-31	73
2009-06-30	72
2009-09-30	27
2009-12-31	21
2010-03-31	20
2010-06-30	43
2010-09-30	41
2010-12-31	42
2011-03-31	55
2011-06-30	56
2011-09-30	56
2011-12-31	26
2012-03-31	32
2012-06-30	28
2012-09-30	57
2012-12-31	60
2013-03-31	65
2013-06-30	55
2013-09-30	13
2013-12-31	10
2014-03-31	13
2014-06-30	12
2014-09-30	6
2014-12-31	9
2015-03-31	12
2015-06-30	9
2015-09-30	12
2015-12-31	7
2016-03-31	6
2016-06-30	8
2016-09-30	21
2016-12-31	9
2017-03-31	9
2017-06-30	13
2017-09-30	16
2017-12-31	18
2018-03-31	20
2018-06-30	40
2018-09-30	16
2018-12-31	8
2019-03-31	1
2019-06-30	39
2019-09-30	37
2019-12-31	38
2020-03-31	37
2020-06-30	37
2020-09-30	1
2020-12-31	1
2021-03-31	1
2021-06-30	1
2021-09-30	1
2021-12-31	42
2022-03-31	39
2022-06-30	32
2022-09-30	41
2022-12-31	41
2023-03-31	33
2023-06-30	50
2023-09-30	46