Quarter	US dollars
1999-09-30	-390
1999-12-31	-621
2000-03-31	-544
2000-06-30	-581
2000-09-30	-325
2000-12-31	33
2001-03-31	400
2001-06-30	588
2001-09-30	440
2001-12-31	1068
2002-03-31	1018
2002-06-30	414
2002-09-30	1021
2002-12-31	336
2003-03-31	-774
2003-06-30	-465
2003-09-30	-362
2003-12-31	-19
2004-03-31	684
2004-06-30	777
2004-09-30	633
2004-12-31	351
2005-03-31	783
2005-06-30	484
2005-09-30	497
2005-12-31	1047
2006-03-31	521
2006-06-30	687
2006-09-30	1072
2006-12-31	1427
2007-03-31	1159
2007-06-30	1463
2007-09-30	367
2007-12-31	-848
2008-03-31	-2602
2008-06-30	-1704
2008-09-30	-1908
2008-12-31	-5070
2009-03-31	-4080
2009-06-30	-2317
2009-09-30	-2556
2009-12-31	-2219
2010-03-31	-1549
2010-06-30	-679
2010-09-30	-962
2010-12-31	-932
2011-03-31	-603
2011-06-30	-856
2011-09-30	-556
2011-12-31	-317
2012-03-31	635
2012-06-30	614
2012-09-30	1112
2012-12-31	1194
2013-03-31	169
2013-06-30	316
2013-09-30	1970
2013-12-31	2556
2014-03-31	2936
2014-06-30	3947
2014-09-30	2893
2014-12-31	1871
2015-03-31	1388
2015-06-30	4230
2015-09-30	834
2015-12-31	0
2016-03-31	0
2016-06-30	0
2016-09-30	0
2016-12-31	0
2017-03-31	0
2017-06-30	0
2017-09-30	0
2017-12-31	0
2018-03-31	0
2018-06-30	0
2018-09-30	0
2018-12-31	0
2019-03-31	0
2019-06-30	0
2019-09-30	0
2019-12-31	0
2020-03-31	0
2020-06-30	0
2020-09-30	0
2020-12-31	0
2021-03-31	0
2021-06-30	0
2021-09-30	0
2021-12-31	0
2022-03-31	0
2022-06-30	0
2022-09-30	0
2022-12-31	0
2023-03-31	0
2023-06-30	0
2023-09-30	0
2023-12-31	0