Quarter	US dollars
2004-12-31	0
2005-03-31	0
2005-06-30	0
2005-09-30	0
2005-12-31	0
2006-03-31	0
2006-06-30	0
2006-09-30	0
2006-12-31	0
2007-03-31	6
2007-06-30	0
2007-09-30	0
2007-12-31	0
2008-03-31	12
2008-06-30	0
2008-09-30	0
2008-12-31	0
2009-03-31	1
2009-06-30	2
2009-09-30	2
2009-12-31	2
2010-03-31	2
2010-06-30	1
2010-09-30	2
2010-12-31	3
2011-03-31	5
2011-06-30	3
2011-09-30	3
2011-12-31	9
2012-03-31	5
2012-06-30	9
2012-09-30	50
2012-12-31	53
2013-03-31	26
2013-06-30	35
2013-09-30	28
2013-12-31	33
2014-03-31	27
2014-06-30	29
2014-09-30	31
2014-12-31	31
2015-03-31	24
2015-06-30	13
2015-09-30	29
2015-12-31	31
2016-03-31	9
2016-06-30	11
2016-09-30	31
2016-12-31	33
2017-03-31	74
2017-06-30	38
2017-09-30	39
2017-12-31	14
2018-03-31	14
2018-06-30	25
2018-09-30	21
2018-12-31	60
2019-03-31	64
2019-06-30	48
2019-09-30	51
2019-12-31	7
2020-03-31	6
2020-06-30	15
2020-09-30	19
2020-12-31	19
2021-03-31	79
2021-06-30	93
2021-09-30	98
2021-12-31	133
2022-03-31	64
2022-06-30	45
2022-09-30	43
2022-12-31	21
2023-03-31	73
2023-06-30	69
2023-09-30	111