Quarter	US dollars
2004-12-31	6
2005-03-31	25
2005-06-30	23
2005-09-30	0
2005-12-31	17
2006-03-31	5
2006-06-30	0
2006-09-30	2
2006-12-31	12
2007-03-31	8
2007-06-30	4
2007-09-30	8
2007-12-31	12
2008-03-31	42
2008-06-30	50
2008-09-30	39
2008-12-31	29
2009-03-31	10
2009-06-30	16
2009-09-30	24
2009-12-31	13
2010-03-31	14
2010-06-30	9
2010-09-30	19
2010-12-31	33
2011-03-31	26
2011-06-30	43
2011-09-30	58
2011-12-31	79
2012-03-31	54
2012-06-30	74
2012-09-30	40
2012-12-31	27
2013-03-31	70
2013-06-30	100
2013-09-30	94
2013-12-31	134
2014-03-31	113
2014-06-30	29
2014-09-30	52
2014-12-31	89
2015-03-31	46
2015-06-30	6
2015-09-30	26
2015-12-31	21
2016-03-31	19
2016-06-30	35
2016-09-30	38
2016-12-31	87
2017-03-31	74
2017-06-30	49
2017-09-30	56
2017-12-31	63
2018-03-31	70
2018-06-30	53
2018-09-30	42
2018-12-31	50
2019-03-31	35
2019-06-30	31
2019-09-30	31
2019-12-31	38
2020-03-31	41
2020-06-30	38
2020-09-30	13
2020-12-31	4
2021-03-31	12
2021-06-30	3
2021-09-30	15
2021-12-31	30
2022-03-31	25
2022-06-30	29
2022-09-30	31
2022-12-31	30
2023-03-31	23
2023-06-30	12
2023-09-30	0