Quarter	US dollars
2004-12-31	-111
2005-03-31	-110
2005-06-30	-108
2005-09-30	-25
2005-12-31	-132
2006-03-31	-125
2006-06-30	-133
2006-09-30	-129
2006-12-31	-164
2007-03-31	-184
2007-06-30	-185
2007-09-30	-202
2007-12-31	-239
2008-03-31	-370
2008-06-30	-428
2008-09-30	-424
2008-12-31	-420
2009-03-31	-390
2009-06-30	-422
2009-09-30	-465
2009-12-31	-539
2010-03-31	-504
2010-06-30	-480
2010-09-30	-495
2010-12-31	-416
2011-03-31	-399
2011-06-30	-313
2011-09-30	-302
2011-12-31	-326
2012-03-31	-352
2012-06-30	-333
2012-09-30	-386
2012-12-31	-416
2013-03-31	-416
2013-06-30	21
2013-09-30	-411
2013-12-31	-385
2014-03-31	-454
2014-06-30	-142
2014-09-30	-113
2014-12-31	-112
2015-03-31	-134
2015-06-30	-124
2015-09-30	-141
2015-12-31	-132
2016-03-31	-132
2016-06-30	-144
2016-09-30	-144
2016-12-31	-145
2017-03-31	-165
2017-06-30	-13
2017-09-30	-12
2017-12-31	-43
2018-03-31	-45
2018-06-30	-49
2018-09-30	-43
2018-12-31	-31
2019-03-31	-33
2019-06-30	-47
2019-09-30	-28
2019-12-31	-28
2020-03-31	-22
2020-06-30	-10
2020-09-30	-17
2020-12-31	-33
2021-03-31	-18
2021-06-30	-17
2021-09-30	-18
2021-12-31	-30
2022-03-31	-17
2022-06-30	-13
2022-09-30	-10
2022-12-31	-14
2023-03-31	-16
2023-06-30	-17
2023-09-30	-16