Quarter	US dollars
2004-12-31	4
2005-03-31	8
2005-06-30	13
2005-09-30	145
2005-12-31	39
2006-03-31	45
2006-06-30	43
2006-09-30	47
2006-12-31	25
2007-03-31	0
2007-06-30	4
2007-09-30	4
2007-12-31	4
2008-03-31	87
2008-06-30	169
2008-09-30	166
2008-12-31	151
2009-03-31	430
2009-06-30	300
2009-09-30	379
2009-12-31	260
2010-03-31	541
2010-06-30	536
2010-09-30	512
2010-12-31	507
2011-03-31	189
2011-06-30	228
2011-09-30	93
2011-12-31	22
2012-03-31	22
2012-06-30	83
2012-09-30	82
2012-12-31	285
2013-03-31	165
2013-06-30	188
2013-09-30	220
2013-12-31	107
2014-03-31	72
2014-06-30	26
2014-09-30	24
2014-12-31	5
2015-03-31	30
2015-06-30	28
2015-09-30	11
2015-12-31	6
2016-03-31	1
2016-06-30	1
2016-09-30	1
2016-12-31	5
2017-03-31	8
2017-06-30	42
2017-09-30	68
2017-12-31	70
2018-03-31	62
2018-06-30	67
2018-09-30	35
2018-12-31	42
2019-03-31	40
2019-06-30	61
2019-09-30	62
2019-12-31	61
2020-03-31	92
2020-06-30	80
2020-09-30	125
2020-12-31	283
2021-03-31	265
2021-06-30	283
2021-09-30	243
2021-12-31	315
2022-03-31	294
2022-06-30	52
2022-09-30	39
2022-12-31	173
2023-03-31	180
2023-06-30	163
2023-09-30	158