Quarter	US dollars
2004-12-31	35
2005-03-31	30
2005-06-30	32
2005-09-30	23
2005-12-31	3
2006-03-31	3
2006-06-30	13
2006-09-30	7
2006-12-31	6
2007-03-31	6
2007-06-30	32
2007-09-30	35
2007-12-31	209
2008-03-31	213
2008-06-30	143
2008-09-30	216
2008-12-31	214
2009-03-31	59
2009-06-30	140
2009-09-30	126
2009-12-31	89
2010-03-31	74
2010-06-30	103
2010-09-30	117
2010-12-31	80
2011-03-31	127
2011-06-30	79
2011-09-30	62
2011-12-31	17
2012-03-31	5
2012-06-30	27
2012-09-30	32
2012-12-31	21
2013-03-31	175
2013-06-30	202
2013-09-30	128
2013-12-31	142
2014-03-31	143
2014-06-30	70
2014-09-30	143
2014-12-31	115
2015-03-31	111
2015-06-30	109
2015-09-30	105
2015-12-31	130
2016-03-31	129
2016-06-30	129
2016-09-30	101
2016-12-31	98
2017-03-31	148
2017-06-30	92
2017-09-30	89
2017-12-31	93
2018-03-31	87
2018-06-30	86
2018-09-30	85
2018-12-31	93
2019-03-31	87
2019-06-30	79
2019-09-30	78
2019-12-31	78
2020-03-31	93
2020-06-30	61
2020-09-30	56
2020-12-31	66
2021-03-31	54
2021-06-30	54
2021-09-30	70
2021-12-31	32
2022-03-31	18
2022-06-30	15
2022-09-30	9
2022-12-31	15
2023-03-31	157
2023-06-30	160
2023-09-30	115