Quarter	US dollars
2004-12-31	-81
2005-03-31	-414
2005-06-30	-514
2005-09-30	-150
2005-12-31	-311
2006-03-31	-225
2006-06-30	-250
2006-09-30	-170
2006-12-31	-127
2007-03-31	-116
2007-06-30	-498
2007-09-30	-257
2007-12-31	-102
2008-03-31	-107
2008-06-30	-143
2008-09-30	-159
2008-12-31	-20
2009-03-31	16
2009-06-30	16
2009-09-30	32
2009-12-31	-16
2010-03-31	-96
2010-06-30	-284
2010-09-30	-350
2010-12-31	-507
2011-03-31	-271
2011-06-30	-230
2011-09-30	-125
2011-12-31	-156
2012-03-31	-158
2012-06-30	-260
2012-09-30	-165
2012-12-31	-178
2013-03-31	-103
2013-06-30	-33
2013-09-30	-474
2013-12-31	20
2014-03-31	-42
2014-06-30	-150
2014-09-30	-53
2014-12-31	-103
2015-03-31	-68
2015-06-30	-63
2015-09-30	-185
2015-12-31	-268
2016-03-31	-266
2016-06-30	-115
2016-09-30	-144
2016-12-31	-98
2017-03-31	-55
2017-06-30	-57
2017-09-30	-76
2017-12-31	-70
2018-03-31	-80
2018-06-30	-201
2018-09-30	-146
2018-12-31	-263
2019-03-31	-137
2019-06-30	-95
2019-09-30	-92
2019-12-31	-106
2020-03-31	-88
2020-06-30	-243
2020-09-30	-222
2020-12-31	-146
2021-03-31	-69
2021-06-30	-69
2021-09-30	-49
2021-12-31	-131
2022-03-31	-118
2022-06-30	-130
2022-09-30	-113
2022-12-31	-88
2023-03-31	-74
2023-06-30	-58
2023-09-30	-208