Quarter	US dollars
2004-12-31	340
2005-03-31	106
2005-06-30	106
2005-09-30	57
2005-12-31	51
2006-03-31	130
2006-06-30	165
2006-09-30	84
2006-12-31	94
2007-03-31	65
2007-06-30	70
2007-09-30	49
2007-12-31	48
2008-03-31	52
2008-06-30	58
2008-09-30	94
2008-12-31	105
2009-03-31	107
2009-06-30	117
2009-09-30	435
2009-12-31	575
2010-03-31	590
2010-06-30	425
2010-09-30	488
2010-12-31	515
2011-03-31	463
2011-06-30	55
2011-09-30	47
2011-12-31	53
2012-03-31	61
2012-06-30	49
2012-09-30	66
2012-12-31	49
2013-03-31	38
2013-06-30	67
2013-09-30	28
2013-12-31	23
2014-03-31	37
2014-06-30	43
2014-09-30	42
2014-12-31	42
2015-03-31	18
2015-06-30	22
2015-09-30	15
2015-12-31	15
2016-03-31	10
2016-06-30	8
2016-09-30	4
2016-12-31	2
2017-03-31	0
2017-06-30	16
2017-09-30	17
2017-12-31	18
2018-03-31	17
2018-06-30	17
2018-09-30	17
2018-12-31	18
2019-03-31	14
2019-06-30	15
2019-09-30	11
2019-12-31	115
2020-03-31	11
2020-06-30	11
2020-09-30	10
2020-12-31	11
2021-03-31	11
2021-06-30	11
2021-09-30	3
2021-12-31	23
2022-03-31	4
2022-06-30	4
2022-09-30	3
2022-12-31	1
2023-03-31	1
2023-06-30	5
2023-09-30	2