Quarter	US dollars
2004-12-31	-167
2005-03-31	-129
2005-06-30	-129
2005-09-30	-131
2005-12-31	-120
2006-03-31	-151
2006-06-30	-174
2006-09-30	-215
2006-12-31	-207
2007-03-31	-175
2007-06-30	-181
2007-09-30	-208
2007-12-31	-215
2008-03-31	-308
2008-06-30	-271
2008-09-30	-262
2008-12-31	-282
2009-03-31	-1733
2009-06-30	-1713
2009-09-30	-1679
2009-12-31	-2070
2010-03-31	-2054
2010-06-30	-2087
2010-09-30	-2092
2010-12-31	-3034
2011-03-31	-1688
2011-06-30	-1769
2011-09-30	-1888
2011-12-31	-1967
2012-03-31	-2034
2012-06-30	-2058
2012-09-30	-2085
2012-12-31	-2065
2013-03-31	-2042
2013-06-30	-1957
2013-09-30	-1942
2013-12-31	-13
2014-03-31	-102
2014-06-30	-96
2014-09-30	-105
2014-12-31	-91
2015-03-31	-102
2015-06-30	-88
2015-09-30	-156
2015-12-31	-154
2016-03-31	-147
2016-06-30	-146
2016-09-30	-152
2016-12-31	-176
2017-03-31	-99
2017-06-30	-123
2017-09-30	-197
2017-12-31	-177
2018-03-31	-87
2018-06-30	-50
2018-09-30	-51
2018-12-31	-68
2019-03-31	-132
2019-06-30	-99
2019-09-30	-168
2019-12-31	-432
2020-03-31	-388
2020-06-30	-208
2020-09-30	-85
2020-12-31	-41
2021-03-31	-41
2021-06-30	-8
2021-09-30	-42
2021-12-31	-46
2022-03-31	-105
2022-06-30	-87
2022-09-30	-147
2022-12-31	-175
2023-03-31	-183
2023-06-30	-141
2023-09-30	-144