Quarter	US dollars
2004-12-31	13
2005-03-31	32
2005-06-30	161
2005-09-30	87
2005-12-31	81
2006-03-31	47
2006-06-30	35
2006-09-30	43
2006-12-31	33
2007-03-31	24
2007-06-30	48
2007-09-30	86
2007-12-31	58
2008-03-31	72
2008-06-30	88
2008-09-30	21
2008-12-31	32
2009-03-31	42
2009-06-30	63
2009-09-30	96
2009-12-31	86
2010-03-31	89
2010-06-30	129
2010-09-30	66
2010-12-31	255
2011-03-31	386
2011-06-30	161
2011-09-30	220
2011-12-31	145
2012-03-31	32
2012-06-30	9
2012-09-30	13
2012-12-31	555
2013-03-31	71
2013-06-30	11
2013-09-30	10
2013-12-31	23
2014-03-31	35
2014-06-30	15
2014-09-30	8
2014-12-31	6
2015-03-31	19
2015-06-30	61
2015-09-30	26
2015-12-31	12
2016-03-31	26
2016-06-30	32
2016-09-30	30
2016-12-31	22
2017-03-31	16
2017-06-30	17
2017-09-30	60
2017-12-31	97
2018-03-31	104
2018-06-30	166
2018-09-30	149
2018-12-31	47
2019-03-31	125
2019-06-30	126
2019-09-30	92
2019-12-31	333
2020-03-31	717
2020-06-30	545
2020-09-30	63
2020-12-31	263
2021-03-31	44
2021-06-30	62
2021-09-30	88
2021-12-31	75
2022-03-31	116
2022-06-30	165
2022-09-30	74
2022-12-31	43
2023-03-31	317
2023-06-30	307
2023-09-30	76