Quarter	US dollars
2004-12-31	60
2005-03-31	93
2005-06-30	41
2005-09-30	46
2005-12-31	51
2006-03-31	168
2006-06-30	274
2006-09-30	166
2006-12-31	307
2007-03-31	194
2007-06-30	102
2007-09-30	90
2007-12-31	181
2008-03-31	161
2008-06-30	251
2008-09-30	264
2008-12-31	269
2009-03-31	171
2009-06-30	255
2009-09-30	277
2009-12-31	283
2010-03-31	74
2010-06-30	186
2010-09-30	290
2010-12-31	299
2011-03-31	385
2011-06-30	456
2011-09-30	354
2011-12-31	339
2012-03-31	256
2012-06-30	307
2012-09-30	270
2012-12-31	459
2013-03-31	885
2013-06-30	171
2013-09-30	126
2013-12-31	-43
2014-03-31	-153
2014-06-30	-19
2014-09-30	47
2014-12-31	16
2015-03-31	6
2015-06-30	31
2015-09-30	30
2015-12-31	21
2016-03-31	1
2016-06-30	7
2016-09-30	-10
2016-12-31	-5
2017-03-31	38
2017-06-30	75
2017-09-30	82
2017-12-31	88
2018-03-31	44
2018-06-30	25
2018-09-30	25
2018-12-31	18
2019-03-31	1
2019-06-30	336
2019-09-30	7
2019-12-31	-15
2020-03-31	32
2020-06-30	-15
2020-09-30	50
2020-12-31	71
2021-03-31	73
2021-06-30	135
2021-09-30	-1
2021-12-31	34
2022-03-31	68
2022-06-30	85
2022-09-30	47
2022-12-31	18
2023-03-31	19
2023-06-30	28
2023-09-30	25