Quarter	US dollars
2004-12-31	-8
2005-03-31	-6
2005-06-30	7
2005-09-30	5
2005-12-31	-172
2006-03-31	-186
2006-06-30	-205
2006-09-30	-217
2006-12-31	-237
2007-03-31	-149
2007-06-30	-161
2007-09-30	-145
2007-12-31	-223
2008-03-31	-219
2008-06-30	-197
2008-09-30	-196
2008-12-31	-165
2009-03-31	-188
2009-06-30	-227
2009-09-30	-265
2009-12-31	-310
2010-03-31	-299
2010-06-30	-290
2010-09-30	-288
2010-12-31	-75
2011-03-31	-91
2011-06-30	-93
2011-09-30	-92
2011-12-31	-87
2012-03-31	-56
2012-06-30	-96
2012-09-30	-95
2012-12-31	-42
2013-03-31	-52
2013-06-30	-79
2013-09-30	-68
2013-12-31	-139
2014-03-31	-52
2014-06-30	9
2014-09-30	-6
2014-12-31	-8
2015-03-31	-3
2015-06-30	2
2015-09-30	-12
2015-12-31	-1
2016-03-31	-42
2016-06-30	-39
2016-09-30	-187
2016-12-31	-175
2017-03-31	-84
2017-06-30	3
2017-09-30	3
2017-12-31	1
2018-03-31	1
2018-06-30	1
2018-09-30	1
2018-12-31	1
2019-03-31	1
2019-06-30	1
2019-09-30	0
2019-12-31	0
2020-03-31	0
2020-06-30	0
2020-09-30	0
2020-12-31	0
2021-03-31	0
2021-06-30	0
2021-09-30	0
2021-12-31	0
2022-03-31	0
2022-06-30	0
2022-09-30	0
2022-12-31	0
2023-03-31	0
2023-06-30	0
2023-09-30	0