Quarter	US dollars
2004-12-31	2
2005-03-31	2
2005-06-30	22
2005-09-30	21
2005-12-31	21
2006-03-31	21
2006-06-30	18
2006-09-30	19
2006-12-31	0
2007-03-31	2
2007-06-30	0
2007-09-30	0
2007-12-31	0
2008-03-31	0
2008-06-30	0
2008-09-30	139
2008-12-31	0
2009-03-31	0
2009-06-30	119
2009-09-30	251
2009-12-31	192
2010-03-31	61
2010-06-30	51
2010-09-30	41
2010-12-31	30
2011-03-31	927
2011-06-30	1090
2011-09-30	1117
2011-12-31	770
2012-03-31	759
2012-06-30	754
2012-09-30	714
2012-12-31	637
2013-03-31	644
2013-06-30	639
2013-09-30	636
2013-12-31	134
2014-03-31	23
2014-06-30	31
2014-09-30	26
2014-12-31	3
2015-03-31	6
2015-06-30	-2
2015-09-30	26
2015-12-31	27
2016-03-31	14
2016-06-30	183
2016-09-30	17
2016-12-31	2
2017-03-31	4
2017-06-30	174
2017-09-30	157
2017-12-31	101
2018-03-31	87
2018-06-30	87
2018-09-30	14
2018-12-31	9
2019-03-31	14
2019-06-30	81
2019-09-30	78
2019-12-31	98
2020-03-31	89
2020-06-30	66
2020-09-30	40
2020-12-31	0
2021-03-31	-3
2021-06-30	14
2021-09-30	0
2021-12-31	0
2022-03-31	1
2022-06-30	0
2022-09-30	10
2022-12-31	3
2023-03-31	-1
2023-06-30	-4
2023-09-30	9