Quarter	US dollars
2004-12-31	-63
2005-03-31	-51
2005-06-30	-39
2005-09-30	5
2005-12-31	-153
2006-03-31	-156
2006-06-30	-178
2006-09-30	-228
2006-12-31	-233
2007-03-31	-271
2007-06-30	-261
2007-09-30	-244
2007-12-31	-199
2008-03-31	-149
2008-06-30	-149
2008-09-30	-73
2008-12-31	-40
2009-03-31	-52
2009-06-30	-43
2009-09-30	-5
2009-12-31	5
2010-03-31	53
2010-06-30	61
2010-09-30	80
2010-12-31	95
2011-03-31	85
2011-06-30	310
2011-09-30	319
2011-12-31	328
2012-03-31	316
2012-06-30	320
2012-09-30	315
2012-12-31	61
2013-03-31	73
2013-06-30	76
2013-09-30	5
2013-12-31	46
2014-03-31	47
2014-06-30	44
2014-09-30	78
2014-12-31	-22
2015-03-31	-39
2015-06-30	-181
2015-09-30	-29
2015-12-31	24
2016-03-31	-56
2016-06-30	59
2016-09-30	17
2016-12-31	111
2017-03-31	275
2017-06-30	55
2017-09-30	67
2017-12-31	303
2018-03-31	264
2018-06-30	292
2018-09-30	278
2018-12-31	190
2019-03-31	149
2019-06-30	146
2019-09-30	133
2019-12-31	107
2020-03-31	125
2020-06-30	67
2020-09-30	44
2020-12-31	194
2021-03-31	103
2021-06-30	91
2021-09-30	44
2021-12-31	42
2022-03-31	55
2022-06-30	142
2022-09-30	147
2022-12-31	-74
2023-03-31	39
2023-06-30	-8
2023-09-30	32