Quarter	US dollars
2004-12-31	-472
2005-03-31	-616
2005-06-30	-357
2005-09-30	-504
2005-12-31	-994
2006-03-31	-735
2006-06-30	-657
2006-09-30	-1138
2006-12-31	-1593
2007-03-31	-1659
2007-06-30	-2075
2007-09-30	-1746
2007-12-31	-1507
2008-03-31	-1540
2008-06-30	-2267
2008-09-30	-1590
2008-12-31	-1761
2009-03-31	-1145
2009-06-30	-596
2009-09-30	-393
2009-12-31	-822
2010-03-31	-326
2010-06-30	-555
2010-09-30	-610
2010-12-31	-728
2011-03-31	-715
2011-06-30	-194
2011-09-30	-617
2011-12-31	-509
2012-03-31	-286
2012-06-30	-477
2012-09-30	-270
2012-12-31	-299
2013-03-31	-266
2013-06-30	-482
2013-09-30	288
2013-12-31	-157
2014-03-31	177
2014-06-30	374
2014-09-30	327
2014-12-31	114
2015-03-31	769
2015-06-30	590
2015-09-30	-214
2015-12-31	-722
2016-03-31	-73
2016-06-30	-158
2016-09-30	412
2016-12-31	-250
2017-03-31	-389
2017-06-30	48
2017-09-30	62
2017-12-31	118
2018-03-31	744
2018-06-30	708
2018-09-30	400
2018-12-31	360
2019-03-31	433
2019-06-30	1184
2019-09-30	663
2019-12-31	443
2020-03-31	270
2020-06-30	131
2020-09-30	-4
2020-12-31	-695
2021-03-31	-186
2021-06-30	-305
2021-09-30	-247
2021-12-31	-182
2022-03-31	116
2022-06-30	245
2022-09-30	56
2022-12-31	268
2023-03-31	259
2023-06-30	202
2023-09-30	202