Quarter	US dollars
2004-12-31	-84
2005-03-31	-112
2005-06-30	-66
2005-09-30	-41
2005-12-31	-81
2006-03-31	-64
2006-06-30	-63
2006-09-30	-110
2006-12-31	-25
2007-03-31	-90
2007-06-30	-120
2007-09-30	-14
2007-12-31	-10
2008-03-31	-22
2008-06-30	-2
2008-09-30	16
2008-12-31	32
2009-03-31	14
2009-06-30	58
2009-09-30	-24
2009-12-31	2
2010-03-31	-44
2010-06-30	-382
2010-09-30	-416
2010-12-31	-238
2011-03-31	-85
2011-06-30	-55
2011-09-30	-55
2011-12-31	-22
2012-03-31	-42
2012-06-30	2
2012-09-30	160
2012-12-31	281
2013-03-31	336
2013-06-30	293
2013-09-30	599
2013-12-31	-124
2014-03-31	275
2014-06-30	68
2014-09-30	97
2014-12-31	105
2015-03-31	45
2015-06-30	0
2015-09-30	-158
2015-12-31	-147
2016-03-31	-150
2016-06-30	-137
2016-09-30	-143
2016-12-31	-134
2017-03-31	16
2017-06-30	23
2017-09-30	21
2017-12-31	16
2018-03-31	-108
2018-06-30	-94
2018-09-30	-94
2018-12-31	-89
2019-03-31	-87
2019-06-30	-90
2019-09-30	-89
2019-12-31	-89
2020-03-31	-36
2020-06-30	-43
2020-09-30	18
2020-12-31	12
2021-03-31	1
2021-06-30	4
2021-09-30	3
2021-12-31	13
2022-03-31	-11
2022-06-30	1
2022-09-30	2
2022-12-31	2
2023-03-31	2
2023-06-30	4
2023-09-30	4