Quarter	US dollars
2004-12-31	6
2005-03-31	4
2005-06-30	5
2005-09-30	5
2005-12-31	7
2006-03-31	9
2006-06-30	7
2006-09-30	56
2006-12-31	59
2007-03-31	59
2007-06-30	2
2007-09-30	6
2007-12-31	12
2008-03-31	6
2008-06-30	8
2008-09-30	16
2008-12-31	85
2009-03-31	79
2009-06-30	28
2009-09-30	104
2009-12-31	8
2010-03-31	14
2010-06-30	13
2010-09-30	3
2010-12-31	8
2011-03-31	256
2011-06-30	814
2011-09-30	271
2011-12-31	266
2012-03-31	329
2012-06-30	425
2012-09-30	665
2012-12-31	774
2013-03-31	683
2013-06-30	422
2013-09-30	291
2013-12-31	377
2014-03-31	534
2014-06-30	258
2014-09-30	209
2014-12-31	212
2015-03-31	147
2015-06-30	153
2015-09-30	118
2015-12-31	144
2016-03-31	142
2016-06-30	172
2016-09-30	105
2016-12-31	111
2017-03-31	104
2017-06-30	117
2017-09-30	117
2017-12-31	88
2018-03-31	77
2018-06-30	58
2018-09-30	43
2018-12-31	60
2019-03-31	44
2019-06-30	41
2019-09-30	39
2019-12-31	144
2020-03-31	94
2020-06-30	69
2020-09-30	76
2020-12-31	60
2021-03-31	90
2021-06-30	61
2021-09-30	49
2021-12-31	30
2022-03-31	101
2022-06-30	154
2022-09-30	107
2022-12-31	138
2023-03-31	138
2023-06-30	170
2023-09-30	139