Quarter	US dollars
2004-12-31	-207
2005-03-31	-181
2005-06-30	-136
2005-09-30	-154
2005-12-31	-100
2006-03-31	-125
2006-06-30	-55
2006-09-30	49
2006-12-31	25
2007-03-31	65
2007-06-30	124
2007-09-30	-22
2007-12-31	-58
2008-03-31	101
2008-06-30	-111
2008-09-30	27
2008-12-31	-70
2009-03-31	10
2009-06-30	-46
2009-09-30	-62
2009-12-31	-23
2010-03-31	-23
2010-06-30	181
2010-09-30	164
2010-12-31	191
2011-03-31	236
2011-06-30	252
2011-09-30	245
2011-12-31	272
2012-03-31	97
2012-06-30	60
2012-09-30	29
2012-12-31	6
2013-03-31	6
2013-06-30	14
2013-09-30	42
2013-12-31	18
2014-03-31	13
2014-06-30	7
2014-09-30	19
2014-12-31	16
2015-03-31	7
2015-06-30	9
2015-09-30	17
2015-12-31	16
2016-03-31	-13
2016-06-30	-15
2016-09-30	-14
2016-12-31	0
2017-03-31	-5
2017-06-30	-6
2017-09-30	-8
2017-12-31	111
2018-03-31	60
2018-06-30	66
2018-09-30	64
2018-12-31	60
2019-03-31	124
2019-06-30	-60
2019-09-30	-51
2019-12-31	-104
2020-03-31	-171
2020-06-30	-140
2020-09-30	-116
2020-12-31	-325
2021-03-31	-317
2021-06-30	-298
2021-09-30	-293
2021-12-31	-106
2022-03-31	-149
2022-06-30	-112
2022-09-30	-51
2022-12-31	-55
2023-03-31	-38
2023-06-30	8
2023-09-30	-11