Quarter	US dollars
2004-12-31	13
2005-03-31	55
2005-06-30	14
2005-09-30	18
2005-12-31	-319
2006-03-31	-397
2006-06-30	-377
2006-09-30	-710
2006-12-31	-977
2007-03-31	-1036
2007-06-30	-949
2007-09-30	-1053
2007-12-31	-1027
2008-03-31	-775
2008-06-30	-818
2008-09-30	-772
2008-12-31	-574
2009-03-31	-639
2009-06-30	-634
2009-09-30	-470
2009-12-31	-297
2010-03-31	-287
2010-06-30	-1391
2010-09-30	-1013
2010-12-31	-967
2011-03-31	-949
2011-06-30	-467
2011-09-30	-414
2011-12-31	-237
2012-03-31	-42
2012-06-30	-27
2012-09-30	-57
2012-12-31	236
2013-03-31	70
2013-06-30	41
2013-09-30	40
2013-12-31	46
2014-03-31	90
2014-06-30	26
2014-09-30	52
2014-12-31	66
2015-03-31	86
2015-06-30	98
2015-09-30	158
2015-12-31	129
2016-03-31	188
2016-06-30	297
2016-09-30	222
2016-12-31	298
2017-03-31	325
2017-06-30	256
2017-09-30	220
2017-12-31	258
2018-03-31	100
2018-06-30	-84
2018-09-30	-190
2018-12-31	-195
2019-03-31	-111
2019-06-30	-78
2019-09-30	-99
2019-12-31	-90
2020-03-31	-71
2020-06-30	-19
2020-09-30	-84
2020-12-31	-85
2021-03-31	-86
2021-06-30	-187
2021-09-30	-65
2021-12-31	61
2022-03-31	16
2022-06-30	92
2022-09-30	161
2022-12-31	34
2023-03-31	52
2023-06-30	81
2023-09-30	109