Quarter	US dollars
2004-12-31	-4
2005-03-31	-6
2005-06-30	-2
2005-09-30	-37
2005-12-31	-41
2006-03-31	-47
2006-06-30	-96
2006-09-30	-86
2006-12-31	-88
2007-03-31	-96
2007-06-30	-44
2007-09-30	-81
2007-12-31	-104
2008-03-31	-139
2008-06-30	-6
2008-09-30	-7
2008-12-31	-7
2009-03-31	40
2009-06-30	40
2009-09-30	26
2009-12-31	5
2010-03-31	9
2010-06-30	12
2010-09-30	50
2010-12-31	-108
2011-03-31	-147
2011-06-30	-141
2011-09-30	-266
2011-12-31	-257
2012-03-31	-252
2012-06-30	-220
2012-09-30	-92
2012-12-31	-165
2013-03-31	-147
2013-06-30	-70
2013-09-30	-107
2013-12-31	-64
2014-03-31	-83
2014-06-30	-75
2014-09-30	-126
2014-12-31	-158
2015-03-31	-119
2015-06-30	-75
2015-09-30	-42
2015-12-31	-50
2016-03-31	-92
2016-06-30	-222
2016-09-30	-174
2016-12-31	-157
2017-03-31	-120
2017-06-30	-123
2017-09-30	-106
2017-12-31	-162
2018-03-31	-126
2018-06-30	-190
2018-09-30	-206
2018-12-31	-73
2019-03-31	-232
2019-06-30	-209
2019-09-30	-202
2019-12-31	-100
2020-03-31	-22
2020-06-30	-80
2020-09-30	-112
2020-12-31	-71
2021-03-31	-22
2021-06-30	-7
2021-09-30	-4
2021-12-31	-49
2022-03-31	-149
2022-06-30	-145
2022-09-30	-49
2022-12-31	-205
2023-03-31	-159
2023-06-30	-26
2023-09-30	-146