Quarter	US dollars
2004-12-31	-8067
2005-03-31	-8191
2005-06-30	-8064
2005-09-30	-8333
2005-12-31	-8956
2006-03-31	-1537
2006-06-30	-1411
2006-09-30	-1653
2006-12-31	-1517
2007-03-31	361
2007-06-30	154
2007-09-30	-1112
2007-12-31	-997
2008-03-31	-1906
2008-06-30	-2098
2008-09-30	-1629
2008-12-31	-1620
2009-03-31	-1328
2009-06-30	-1304
2009-09-30	-1073
2009-12-31	-615
2010-03-31	-413
2010-06-30	-1046
2010-09-30	-1010
2010-12-31	-637
2011-03-31	-753
2011-06-30	-671
2011-09-30	-883
2011-12-31	-996
2012-03-31	-818
2012-06-30	-916
2012-09-30	-672
2012-12-31	-850
2013-03-31	-709
2013-06-30	-651
2013-09-30	-523
2013-12-31	-641
2014-03-31	-974
2014-06-30	-863
2014-09-30	-1042
2014-12-31	-835
2015-03-31	-768
2015-06-30	-741
2015-09-30	-942
2015-12-31	-1477
2016-03-31	-1390
2016-06-30	-1710
2016-09-30	-1189
2016-12-31	-1612
2017-03-31	-1291
2017-06-30	-1552
2017-09-30	-1445
2017-12-31	-1750
2018-03-31	-115
2018-06-30	-246
2018-09-30	-923
2018-12-31	-1001
2019-03-31	-979
2019-06-30	-1051
2019-09-30	-1045
2019-12-31	-1196
2020-03-31	-1165
2020-06-30	-999
2020-09-30	-1164
2020-12-31	-296
2021-03-31	-235
2021-06-30	-321
2021-09-30	-299
2021-12-31	-309
2022-03-31	-363
2022-06-30	-504
2022-09-30	-684
2022-12-31	-385
2023-03-31	-393
2023-06-30	-572
2023-09-30	-693