Quarter	US dollars
2004-12-31	8
2005-03-31	8
2005-06-30	0
2005-09-30	0
2005-12-31	0
2006-03-31	9
2006-06-30	17
2006-09-30	11
2006-12-31	311
2007-03-31	355
2007-06-30	337
2007-09-30	88
2007-12-31	364
2008-03-31	346
2008-06-30	340
2008-09-30	348
2008-12-31	467
2009-03-31	446
2009-06-30	507
2009-09-30	528
2009-12-31	442
2010-03-31	452
2010-06-30	435
2010-09-30	488
2010-12-31	509
2011-03-31	555
2011-06-30	531
2011-09-30	474
2011-12-31	450
2012-03-31	468
2012-06-30	464
2012-09-30	392
2012-12-31	24
2013-03-31	29
2013-06-30	29
2013-09-30	21
2013-12-31	23
2014-03-31	20
2014-06-30	21
2014-09-30	19
2014-12-31	0
2015-03-31	18
2015-06-30	-6
2015-09-30	8
2015-12-31	1
2016-03-31	-1
2016-06-30	-5
2016-09-30	-3
2016-12-31	0
2017-03-31	4
2017-06-30	-1
2017-09-30	5
2017-12-31	-14
2018-03-31	-3
2018-06-30	33
2018-09-30	-4
2018-12-31	13
2019-03-31	-4
2019-06-30	4
2019-09-30	-27
2019-12-31	-13
2020-03-31	11
2020-06-30	-2
2020-09-30	4
2020-12-31	1
2021-03-31	1
2021-06-30	3
2021-09-30	4
2021-12-31	-1
2022-03-31	4
2022-06-30	5
2022-09-30	3
2022-12-31	1
2023-03-31	11
2023-06-30	9
2023-09-30	24