Quarter	US dollars
2004-12-31	10
2005-03-31	38
2005-06-30	13
2005-09-30	7
2005-12-31	24
2006-03-31	16
2006-06-30	24
2006-09-30	35
2006-12-31	57
2007-03-31	65
2007-06-30	48
2007-09-30	51
2007-12-31	52
2008-03-31	54
2008-06-30	32
2008-09-30	36
2008-12-31	56
2009-03-31	37
2009-06-30	33
2009-09-30	26
2009-12-31	31
2010-03-31	96
2010-06-30	75
2010-09-30	61
2010-12-31	67
2011-03-31	146
2011-06-30	273
2011-09-30	145
2011-12-31	243
2012-03-31	97
2012-06-30	246
2012-09-30	249
2012-12-31	257
2013-03-31	231
2013-06-30	235
2013-09-30	243
2013-12-31	226
2014-03-31	238
2014-06-30	219
2014-09-30	203
2014-12-31	175
2015-03-31	162
2015-06-30	91
2015-09-30	73
2015-12-31	77
2016-03-31	37
2016-06-30	24
2016-09-30	21
2016-12-31	18
2017-03-31	28
2017-06-30	256
2017-09-30	21
2017-12-31	12
2018-03-31	18
2018-06-30	46
2018-09-30	8
2018-12-31	27
2019-03-31	25
2019-06-30	19
2019-09-30	7
2019-12-31	7
2020-03-31	6
2020-06-30	23
2020-09-30	27
2020-12-31	27
2021-03-31	150
2021-06-30	145
2021-09-30	142
2021-12-31	173
2022-03-31	175
2022-06-30	166
2022-09-30	157
2022-12-31	138
2023-03-31	44
2023-06-30	151
2023-09-30	149