Quarter	US dollars
2004-12-31	6
2005-03-31	11
2005-06-30	5
2005-09-30	9
2005-12-31	5
2006-03-31	9
2006-06-30	9
2006-09-30	4
2006-12-31	6
2007-03-31	8
2007-06-30	305
2007-09-30	8
2007-12-31	113
2008-03-31	20
2008-06-30	16
2008-09-30	16
2008-12-31	17
2009-03-31	10
2009-06-30	3
2009-09-30	3
2009-12-31	0
2010-03-31	3
2010-06-30	18
2010-09-30	359
2010-12-31	265
2011-03-31	282
2011-06-30	252
2011-09-30	262
2011-12-31	261
2012-03-31	257
2012-06-30	262
2012-09-30	6
2012-12-31	13
2013-03-31	17
2013-06-30	21
2013-09-30	15
2013-12-31	20
2014-03-31	22
2014-06-30	14
2014-09-30	24
2014-12-31	36
2015-03-31	21
2015-06-30	24
2015-09-30	30
2015-12-31	44
2016-03-31	32
2016-06-30	31
2016-09-30	26
2016-12-31	9
2017-03-31	26
2017-06-30	21
2017-09-30	11
2017-12-31	9
2018-03-31	4
2018-06-30	20
2018-09-30	33
2018-12-31	41
2019-03-31	46
2019-06-30	50
2019-09-30	38
2019-12-31	29
2020-03-31	47
2020-06-30	54
2020-09-30	47
2020-12-31	44
2021-03-31	33
2021-06-30	22
2021-09-30	30
2021-12-31	34
2022-03-31	41
2022-06-30	38
2022-09-30	72
2022-12-31	71
2023-03-31	51
2023-06-30	45
2023-09-30	41