Quarter	US dollars
2004-12-31	-1359
2005-03-31	-1548
2005-06-30	-685
2005-09-30	-1176
2005-12-31	-843
2006-03-31	-225
2006-06-30	-986
2006-09-30	-1728
2006-12-31	-1955
2007-03-31	-4234
2007-06-30	-4095
2007-09-30	-3659
2007-12-31	-3008
2008-03-31	-1912
2008-06-30	133
2008-09-30	-266
2008-12-31	-217
2009-03-31	-165
2009-06-30	-203
2009-09-30	-400
2009-12-31	-47
2010-03-31	-109
2010-06-30	-979
2010-09-30	-879
2010-12-31	-557
2011-03-31	-757
2011-06-30	-456
2011-09-30	115
2011-12-31	-119
2012-03-31	126
2012-06-30	205
2012-09-30	6
2012-12-31	-396
2013-03-31	-41
2013-06-30	0
2013-09-30	-172
2013-12-31	140
2014-03-31	-10
2014-06-30	-17
2014-09-30	11
2014-12-31	33
2015-03-31	135
2015-06-30	-47
2015-09-30	-47
2015-12-31	-40
2016-03-31	-342
2016-06-30	-230
2016-09-30	-186
2016-12-31	-33
2017-03-31	-214
2017-06-30	-4
2017-09-30	-35
2017-12-31	5
2018-03-31	87
2018-06-30	260
2018-09-30	166
2018-12-31	206
2019-03-31	233
2019-06-30	232
2019-09-30	5
2019-12-31	137
2020-03-31	-11
2020-06-30	41
2020-09-30	37
2020-12-31	22
2021-03-31	91
2021-06-30	40
2021-09-30	345
2021-12-31	117
2022-03-31	205
2022-06-30	171
2022-09-30	143
2022-12-31	148
2023-03-31	204
2023-06-30	150
2023-09-30	347