Quarter	US dollars
2004-12-31	-127
2005-03-31	-344
2005-06-30	-13
2005-09-30	-76
2005-12-31	38
2006-03-31	-14
2006-06-30	-92
2006-09-30	-138
2006-12-31	-215
2007-03-31	-843
2007-06-30	-991
2007-09-30	-1068
2007-12-31	-938
2008-03-31	-859
2008-06-30	-1974
2008-09-30	-2892
2008-12-31	-2700
2009-03-31	-2935
2009-06-30	-3170
2009-09-30	-2906
2009-12-31	-2534
2010-03-31	-2982
2010-06-30	-3495
2010-09-30	-3762
2010-12-31	-5329
2011-03-31	-4344
2011-06-30	-11774
2011-09-30	-6792
2011-12-31	-7299
2012-03-31	-5036
2012-06-30	-6332
2012-09-30	-4851
2012-12-31	-4367
2013-03-31	-3841
2013-06-30	-4133
2013-09-30	-4473
2013-12-31	-4053
2014-03-31	-505
2014-06-30	-3541
2014-09-30	-2420
2014-12-31	-2588
2015-03-31	-1511
2015-06-30	-1677
2015-09-30	-3176
2015-12-31	-1947
2016-03-31	-2893
2016-06-30	-2907
2016-09-30	-2360
2016-12-31	778
2017-03-31	34
2017-06-30	-197
2017-09-30	-182
2017-12-31	-420
2018-03-31	-417
2018-06-30	-1454
2018-09-30	-1059
2018-12-31	-1323
2019-03-31	-362
2019-06-30	-1409
2019-09-30	-1578
2019-12-31	-625
2020-03-31	-2149
2020-06-30	-554
2020-09-30	-311
2020-12-31	-70
2021-03-31	-974
2021-06-30	-630
2021-09-30	-1139
2021-12-31	-865
2022-03-31	-2294
2022-06-30	-3369
2022-09-30	-6840
2022-12-31	-2356
2023-03-31	-1078
2023-06-30	-1252
2023-09-30	-1314