Quarter	US dollars
2004-12-31	19
2005-03-31	26
2005-06-30	5
2005-09-30	7
2005-12-31	10
2006-03-31	14
2006-06-30	17
2006-09-30	15
2006-12-31	14
2007-03-31	14
2007-06-30	16
2007-09-30	14
2007-12-31	8
2008-03-31	4
2008-06-30	28
2008-09-30	59
2008-12-31	49
2009-03-31	50
2009-06-30	48
2009-09-30	40
2009-12-31	37
2010-03-31	88
2010-06-30	75
2010-09-30	50
2010-12-31	25
2011-03-31	38
2011-06-30	31
2011-09-30	67
2011-12-31	54
2012-03-31	8
2012-06-30	11
2012-09-30	6
2012-12-31	8
2013-03-31	6
2013-06-30	3
2013-09-30	5
2013-12-31	7
2014-03-31	8
2014-06-30	44
2014-09-30	34
2014-12-31	47
2015-03-31	31
2015-06-30	33
2015-09-30	8
2015-12-31	9
2016-03-31	7
2016-06-30	4
2016-09-30	30
2016-12-31	27
2017-03-31	11
2017-06-30	136
2017-09-30	137
2017-12-31	142
2018-03-31	149
2018-06-30	99
2018-09-30	65
2018-12-31	73
2019-03-31	203
2019-06-30	150
2019-09-30	96
2019-12-31	230
2020-03-31	216
2020-06-30	168
2020-09-30	136
2020-12-31	136
2021-03-31	126
2021-06-30	137
2021-09-30	127
2021-12-31	190
2022-03-31	196
2022-06-30	296
2022-09-30	266
2022-12-31	240
2023-03-31	167
2023-06-30	150
2023-09-30	110