Quarter	US dollars
2004-12-31	6
2005-03-31	6
2005-06-30	13
2005-09-30	9
2005-12-31	57
2006-03-31	75
2006-06-30	6
2006-09-30	7
2006-12-31	8
2007-03-31	10
2007-06-30	6
2007-09-30	4
2007-12-31	6
2008-03-31	6
2008-06-30	10
2008-09-30	7
2008-12-31	4
2009-03-31	1
2009-06-30	2
2009-09-30	2
2009-12-31	10
2010-03-31	2
2010-06-30	7
2010-09-30	14
2010-12-31	16
2011-03-31	13
2011-06-30	13
2011-09-30	173
2011-12-31	62
2012-03-31	89
2012-06-30	11
2012-09-30	21
2012-12-31	18
2013-03-31	15
2013-06-30	130
2013-09-30	151
2013-12-31	66
2014-03-31	50
2014-06-30	12
2014-09-30	81
2014-12-31	64
2015-03-31	24
2015-06-30	3
2015-09-30	36
2015-12-31	65
2016-03-31	39
2016-06-30	36
2016-09-30	65
2016-12-31	76
2017-03-31	40
2017-06-30	10
2017-09-30	13
2017-12-31	15
2018-03-31	275
2018-06-30	259
2018-09-30	4
2018-12-31	24
2019-03-31	33
2019-06-30	266
2019-09-30	4
2019-12-31	21
2020-03-31	270
2020-06-30	276
2020-09-30	3
2020-12-31	25
2021-03-31	28
2021-06-30	40
2021-09-30	5
2021-12-31	23
2022-03-31	24
2022-06-30	5
2022-09-30	13
2022-12-31	12
2023-03-31	3
2023-06-30	4
2023-09-30	11