Quarter	US dollars
2004-12-31	-29
2005-03-31	38
2005-06-30	242
2005-09-30	90
2005-12-31	106
2006-03-31	9
2006-06-30	-18
2006-09-30	-32
2006-12-31	22
2007-03-31	202
2007-06-30	-2
2007-09-30	24
2007-12-31	40
2008-03-31	56
2008-06-30	-12
2008-09-30	135
2008-12-31	597
2009-03-31	557
2009-06-30	435
2009-09-30	469
2009-12-31	-402
2010-03-31	-137
2010-06-30	-19
2010-09-30	-608
2010-12-31	-783
2011-03-31	-160
2011-06-30	-100
2011-09-30	-112
2011-12-31	-90
2012-03-31	-88
2012-06-30	-91
2012-09-30	-87
2012-12-31	-11
2013-03-31	-23
2013-06-30	18
2013-09-30	34
2013-12-31	15
2014-03-31	1824
2014-06-30	1872
2014-09-30	1978
2014-12-31	1623
2015-03-31	1994
2015-06-30	1537
2015-09-30	1636
2015-12-31	1614
2016-03-31	1779
2016-06-30	1947
2016-09-30	2194
2016-12-31	2045
2017-03-31	1991
2017-06-30	1577
2017-09-30	810
2017-12-31	227
2018-03-31	382
2018-06-30	280
2018-09-30	227
2018-12-31	259
2019-03-31	466
2019-06-30	-318
2019-09-30	-2781
2019-12-31	-1668
2020-03-31	160
2020-06-30	370
2020-09-30	304
2020-12-31	231
2021-03-31	210
2021-06-30	151
2021-09-30	169
2021-12-31	84
2022-03-31	21
2022-06-30	30
2022-09-30	-81
2022-12-31	-81
2023-03-31	-70
2023-06-30	-1
2023-09-30	60