Quarter	US dollars
2004-12-31	-762
2005-03-31	-720
2005-06-30	-1728
2005-09-30	-1647
2005-12-31	-1348
2006-03-31	-1297
2006-06-30	-1274
2006-09-30	-1212
2006-12-31	-1239
2007-03-31	-1118
2007-06-30	-973
2007-09-30	-860
2007-12-31	-822
2008-03-31	-781
2008-06-30	-790
2008-09-30	-633
2008-12-31	-371
2009-03-31	-380
2009-06-30	-277
2009-09-30	-22
2009-12-31	-47
2010-03-31	9
2010-06-30	-138
2010-09-30	-88
2010-12-31	-81
2011-03-31	-93
2011-06-30	-98
2011-09-30	65
2011-12-31	-114
2012-03-31	74
2012-06-30	80
2012-09-30	31
2012-12-31	13
2013-03-31	15
2013-06-30	5
2013-09-30	126
2013-12-31	245
2014-03-31	298
2014-06-30	282
2014-09-30	271
2014-12-31	273
2015-03-31	184
2015-06-30	22
2015-09-30	26
2015-12-31	163
2016-03-31	244
2016-06-30	305
2016-09-30	307
2016-12-31	300
2017-03-31	335
2017-06-30	118
2017-09-30	113
2017-12-31	127
2018-03-31	-160
2018-06-30	-108
2018-09-30	-210
2018-12-31	57
2019-03-31	108
2019-06-30	92
2019-09-30	113
2019-12-31	118
2020-03-31	82
2020-06-30	47
2020-09-30	63
2020-12-31	61
2021-03-31	70
2021-06-30	-43
2021-09-30	-15
2021-12-31	-38
2022-03-31	-38
2022-06-30	51
2022-09-30	58
2022-12-31	86
2023-03-31	99
2023-06-30	318
2023-09-30	330