Quarter	US dollars
2004-12-31	403
2005-03-31	350
2005-06-30	38
2005-09-30	42
2005-12-31	24
2006-03-31	14
2006-06-30	30
2006-09-30	28
2006-12-31	23
2007-03-31	22
2007-06-30	24
2007-09-30	35
2007-12-31	38
2008-03-31	6
2008-06-30	10
2008-09-30	25
2008-12-31	32
2009-03-31	146
2009-06-30	140
2009-09-30	43
2009-12-31	47
2010-03-31	27
2010-06-30	4
2010-09-30	30
2010-12-31	28
2011-03-31	30
2011-06-30	29
2011-09-30	36
2011-12-31	96
2012-03-31	101
2012-06-30	118
2012-09-30	68
2012-12-31	65
2013-03-31	65
2013-06-30	65
2013-09-30	65
2013-12-31	64
2014-03-31	65
2014-06-30	65
2014-09-30	68
2014-12-31	12
2015-03-31	12
2015-06-30	11
2015-09-30	6
2015-12-31	6
2016-03-31	27
2016-06-30	13
2016-09-30	9
2016-12-31	9
2017-03-31	9
2017-06-30	57
2017-09-30	42
2017-12-31	22
2018-03-31	27
2018-06-30	26
2018-09-30	29
2018-12-31	128
2019-03-31	83
2019-06-30	83
2019-09-30	94
2019-12-31	100
2020-03-31	48
2020-06-30	32
2020-09-30	50
2020-12-31	48
2021-03-31	36
2021-06-30	51
2021-09-30	71
2021-12-31	63
2022-03-31	46
2022-06-30	70
2022-09-30	77
2022-12-31	37
2023-03-31	35
2023-06-30	32
2023-09-30	36