Quarter	US dollars
2004-12-31	83
2005-03-31	78
2005-06-30	75
2005-09-30	73
2005-12-31	69
2006-03-31	31
2006-06-30	52
2006-09-30	49
2006-12-31	43
2007-03-31	16
2007-06-30	12
2007-09-30	14
2007-12-31	16
2008-03-31	12
2008-06-30	14
2008-09-30	14
2008-12-31	13
2009-03-31	13
2009-06-30	13
2009-09-30	14
2009-12-31	16
2010-03-31	17
2010-06-30	15
2010-09-30	14
2010-12-31	30
2011-03-31	37
2011-06-30	42
2011-09-30	42
2011-12-31	43
2012-03-31	43
2012-06-30	47
2012-09-30	50
2012-12-31	49
2013-03-31	46
2013-06-30	46
2013-09-30	44
2013-12-31	43
2014-03-31	42
2014-06-30	41
2014-09-30	37
2014-12-31	34
2015-03-31	34
2015-06-30	31
2015-09-30	29
2015-12-31	28
2016-03-31	14
2016-06-30	27
2016-09-30	26
2016-12-31	22
2017-03-31	21
2017-06-30	19
2017-09-30	17
2017-12-31	16
2018-03-31	15
2018-06-30	15
2018-09-30	13
2018-12-31	15
2019-03-31	10
2019-06-30	9
2019-09-30	9
2019-12-31	12
2020-03-31	24
2020-06-30	25
2020-09-30	3
2020-12-31	3
2021-03-31	3
2021-06-30	1
2021-09-30	1
2021-12-31	0
2022-03-31	0
2022-06-30	0
2022-09-30	0
2022-12-31	0
2023-03-31	0
2023-06-30	0
2023-09-30	0