Quarter	US dollars
2004-12-31	42
2005-03-31	47
2005-06-30	54
2005-09-30	53
2005-12-31	51
2006-03-31	75
2006-06-30	85
2006-09-30	88
2006-12-31	86
2007-03-31	82
2007-06-30	76
2007-09-30	69
2007-12-31	58
2008-03-31	58
2008-06-30	56
2008-09-30	53
2008-12-31	47
2009-03-31	46
2009-06-30	41
2009-09-30	45
2009-12-31	42
2010-03-31	540
2010-06-30	489
2010-09-30	1533
2010-12-31	168
2011-03-31	588
2011-06-30	756
2011-09-30	625
2011-12-31	441
2012-03-31	441
2012-06-30	337
2012-09-30	129
2012-12-31	79
2013-03-31	137
2013-06-30	99
2013-09-30	121
2013-12-31	175
2014-03-31	145
2014-06-30	109
2014-09-30	115
2014-12-31	83
2015-03-31	65
2015-06-30	75
2015-09-30	91
2015-12-31	243
2016-03-31	175
2016-06-30	157
2016-09-30	209
2016-12-31	223
2017-03-31	216
2017-06-30	238
2017-09-30	232
2017-12-31	226
2018-03-31	196
2018-06-30	194
2018-09-30	180
2018-12-31	174
2019-03-31	179
2019-06-30	173
2019-09-30	163
2019-12-31	169
2020-03-31	145
2020-06-30	136
2020-09-30	127
2020-12-31	128
2021-03-31	123
2021-06-30	140
2021-09-30	121
2021-12-31	98
2022-03-31	116
2022-06-30	107
2022-09-30	99
2022-12-31	98
2023-03-31	91
2023-06-30	86
2023-09-30	89