Quarter	US dollars
2004-12-31	-230
2005-03-31	-200
2005-06-30	-246
2005-09-30	-271
2005-12-31	-302
2006-03-31	-324
2006-06-30	-307
2006-09-30	-323
2006-12-31	-329
2007-03-31	-355
2007-06-30	-349
2007-09-30	-387
2007-12-31	-392
2008-03-31	-213
2008-06-30	-362
2008-09-30	-321
2008-12-31	-283
2009-03-31	-204
2009-06-30	-204
2009-09-30	-184
2009-12-31	-179
2010-03-31	-194
2010-06-30	7
2010-09-30	2
2010-12-31	-56
2011-03-31	10
2011-06-30	-93
2011-09-30	-98
2011-12-31	5
2012-03-31	3
2012-06-30	5
2012-09-30	5
2012-12-31	3
2013-03-31	3
2013-06-30	17
2013-09-30	32
2013-12-31	13
2014-03-31	0
2014-06-30	-36
2014-09-30	-24
2014-12-31	-20
2015-03-31	-13
2015-06-30	-6
2015-09-30	498
2015-12-31	381
2016-03-31	347
2016-06-30	-1
2016-09-30	-1
2016-12-31	81
2017-03-31	83
2017-06-30	0
2017-09-30	-13
2017-12-31	-1
2018-03-31	-1
2018-06-30	-4
2018-09-30	244
2018-12-31	267
2019-03-31	68
2019-06-30	93
2019-09-30	89
2019-12-31	65
2020-03-31	-4
2020-06-30	0
2020-09-30	-59
2020-12-31	-19
2021-03-31	-28
2021-06-30	-28
2021-09-30	3
2021-12-31	-28
2022-03-31	-13
2022-06-30	-324
2022-09-30	-303
2022-12-31	-206
2023-03-31	-139
2023-06-30	-126
2023-09-30	-86