Quarter	US dollars
2004-12-31	27
2005-03-31	4
2005-06-30	4
2005-09-30	2
2005-12-31	22
2006-03-31	24
2006-06-30	17
2006-09-30	9
2006-12-31	12
2007-03-31	35
2007-06-30	42
2007-09-30	20
2007-12-31	2
2008-03-31	2
2008-06-30	20
2008-09-30	59
2008-12-31	102
2009-03-31	143
2009-06-30	165
2009-09-30	134
2009-12-31	84
2010-03-31	68
2010-06-30	102
2010-09-30	132
2010-12-31	149
2011-03-31	383
2011-06-30	385
2011-09-30	302
2011-12-31	90
2012-03-31	113
2012-06-30	89
2012-09-30	118
2012-12-31	149
2013-03-31	94
2013-06-30	58
2013-09-30	15
2013-12-31	202
2014-03-31	205
2014-06-30	205
2014-09-30	99
2014-12-31	27
2015-03-31	166
2015-06-30	168
2015-09-30	89
2015-12-31	87
2016-03-31	476
2016-06-30	471
2016-09-30	405
2016-12-31	47
2017-03-31	68
2017-06-30	200
2017-09-30	176
2017-12-31	151
2018-03-31	128
2018-06-30	7
2018-09-30	7
2018-12-31	1
2019-03-31	1
2019-06-30	1
2019-09-30	5
2019-12-31	9
2020-03-31	4
2020-06-30	52
2020-09-30	19
2020-12-31	12
2021-03-31	6
2021-06-30	3
2021-09-30	5
2021-12-31	15
2022-03-31	5
2022-06-30	23
2022-09-30	25
2022-12-31	21
2023-03-31	20
2023-06-30	52
2023-09-30	81