Quarter	US dollars
2004-12-31	-27
2005-03-31	17
2005-06-30	-18
2005-09-30	-21
2005-12-31	-663
2006-03-31	-611
2006-06-30	-989
2006-09-30	-1041
2006-12-31	-1552
2007-03-31	-2669
2007-06-30	-4839
2007-09-30	-4737
2007-12-31	-3970
2008-03-31	-3858
2008-06-30	-3562
2008-09-30	-2060
2008-12-31	-1571
2009-03-31	-1369
2009-06-30	-1327
2009-09-30	-640
2009-12-31	-740
2010-03-31	-728
2010-06-30	-1854
2010-09-30	-1333
2010-12-31	-899
2011-03-31	-728
2011-06-30	-853
2011-09-30	-282
2011-12-31	-31
2012-03-31	-29
2012-06-30	-13
2012-09-30	-11
2012-12-31	141
2013-03-31	-6
2013-06-30	39
2013-09-30	-60
2013-12-31	-23
2014-03-31	87
2014-06-30	-21
2014-09-30	-39
2014-12-31	-6
2015-03-31	4
2015-06-30	-49
2015-09-30	-3
2015-12-31	-19
2016-03-31	-27
2016-06-30	-8
2016-09-30	-27
2016-12-31	-59
2017-03-31	-39
2017-06-30	-30
2017-09-30	-42
2017-12-31	-9
2018-03-31	3
2018-06-30	57
2018-09-30	85
2018-12-31	64
2019-03-31	56
2019-06-30	67
2019-09-30	57
2019-12-31	55
2020-03-31	56
2020-06-30	59
2020-09-30	66
2020-12-31	66
2021-03-31	63
2021-06-30	44
2021-09-30	46
2021-12-31	42
2022-03-31	37
2022-06-30	13
2022-09-30	16
2022-12-31	5
2023-03-31	-74
2023-06-30	-287
2023-09-30	-300