Quarter	US dollars
2004-12-31	-167
2005-03-31	-181
2005-06-30	-140
2005-09-30	-179
2005-12-31	-129
2006-03-31	-347
2006-06-30	-329
2006-09-30	-24
2006-12-31	-74
2007-03-31	-16
2007-06-30	-762
2007-09-30	-222
2007-12-31	-235
2008-03-31	54
2008-06-30	384
2008-09-30	317
2008-12-31	-49
2009-03-31	1
2009-06-30	-96
2009-09-30	88
2009-12-31	-94
2010-03-31	0
2010-06-30	-42
2010-09-30	-112
2010-12-31	-778
2011-03-31	-58
2011-06-30	-69
2011-09-30	-148
2011-12-31	-257
2012-03-31	-272
2012-06-30	-75
2012-09-30	-126
2012-12-31	112
2013-03-31	-62
2013-06-30	36
2013-09-30	170
2013-12-31	106
2014-03-31	-18
2014-06-30	-125
2014-09-30	144
2014-12-31	178
2015-03-31	186
2015-06-30	47
2015-09-30	33
2015-12-31	-40
2016-03-31	35
2016-06-30	-130
2016-09-30	-233
2016-12-31	-351
2017-03-31	-306
2017-06-30	-169
2017-09-30	-130
2017-12-31	-85
2018-03-31	-53
2018-06-30	-58
2018-09-30	-25
2018-12-31	-22
2019-03-31	-259
2019-06-30	-313
2019-09-30	-306
2019-12-31	-178
2020-03-31	-100
2020-06-30	-112
2020-09-30	-88
2020-12-31	-71
2021-03-31	-61
2021-06-30	11
2021-09-30	-81
2021-12-31	-71
2022-03-31	-30
2022-06-30	-53
2022-09-30	-33
2022-12-31	-28
2023-03-31	-15
2023-06-30	-12
2023-09-30	-9