Quarter	US dollars
2004-12-31	31
2005-03-31	30
2005-06-30	84
2005-09-30	58
2005-12-31	36
2006-03-31	21
2006-06-30	11
2006-09-30	11
2006-12-31	8
2007-03-31	16
2007-06-30	4
2007-09-30	6
2007-12-31	8
2008-03-31	18
2008-06-30	-8
2008-09-30	77
2008-12-31	99
2009-03-31	85
2009-06-30	68
2009-09-30	99
2009-12-31	-160
2010-03-31	-96
2010-06-30	-217
2010-09-30	-124
2010-12-31	-16
2011-03-31	-2
2011-06-30	-3
2011-09-30	28
2011-12-31	-90
2012-03-31	-105
2012-06-30	-122
2012-09-30	0
2012-12-31	-37
2013-03-31	-80
2013-06-30	-3
2013-09-30	11
2013-12-31	-15
2014-03-31	20
2014-06-30	185
2014-09-30	-190
2014-12-31	247
2015-03-31	325
2015-06-30	226
2015-09-30	277
2015-12-31	393
2016-03-31	506
2016-06-30	698
2016-09-30	177
2016-12-31	164
2017-03-31	178
2017-06-30	151
2017-09-30	47
2017-12-31	69
2018-03-31	46
2018-06-30	65
2018-09-30	51
2018-12-31	50
2019-03-31	807
2019-06-30	66
2019-09-30	60
2019-12-31	11
2020-03-31	26
2020-06-30	2
2020-09-30	14
2020-12-31	-26
2021-03-31	-23
2021-06-30	-18
2021-09-30	31
2021-12-31	27
2022-03-31	29
2022-06-30	-12
2022-09-30	21
2022-12-31	17
2023-03-31	42
2023-06-30	28
2023-09-30	22