Quarter	US dollars
2004-12-31	27
2005-03-31	32
2005-06-30	39
2005-09-30	39
2005-12-31	38
2006-03-31	33
2006-06-30	44
2006-09-30	45
2006-12-31	41
2007-03-31	41
2007-06-30	36
2007-09-30	33
2007-12-31	32
2008-03-31	32
2008-06-30	30
2008-09-30	30
2008-12-31	27
2009-03-31	27
2009-06-30	25
2009-09-30	24
2009-12-31	23
2010-03-31	21
2010-06-30	18
2010-09-30	19
2010-12-31	19
2011-03-31	18
2011-06-30	16
2011-09-30	17
2011-12-31	12
2012-03-31	13
2012-06-30	11
2012-09-30	11
2012-12-31	10
2013-03-31	9
2013-06-30	8
2013-09-30	8
2013-12-31	5
2014-03-31	5
2014-06-30	3
2014-09-30	3
2014-12-31	2
2015-03-31	1
2015-06-30	69
2015-09-30	64
2015-12-31	62
2016-03-31	56
2016-06-30	52
2016-09-30	48
2016-12-31	46
2017-03-31	44
2017-06-30	0
2017-09-30	0
2017-12-31	9
2018-03-31	112
2018-06-30	135
2018-09-30	120
2018-12-31	57
2019-03-31	57
2019-06-30	150
2019-09-30	120
2019-12-31	73
2020-03-31	60
2020-06-30	211
2020-09-30	258
2020-12-31	317
2021-03-31	250
2021-06-30	265
2021-09-30	222
2021-12-31	263
2022-03-31	667
2022-06-30	600
2022-09-30	530
2022-12-31	518
2023-03-31	754
2023-06-30	637
2023-09-30	672