Quarter	US dollars
2004-12-31	127
2005-03-31	212
2005-06-30	199
2005-09-30	88
2005-12-31	160
2006-03-31	134
2006-06-30	166
2006-09-30	110
2006-12-31	55
2007-03-31	55
2007-06-30	36
2007-09-30	33
2007-12-31	32
2008-03-31	99
2008-06-30	76
2008-09-30	78
2008-12-31	60
2009-03-31	39
2009-06-30	25
2009-09-30	11
2009-12-31	6
2010-03-31	8
2010-06-30	9
2010-09-30	11
2010-12-31	95
2011-03-31	104
2011-06-30	119
2011-09-30	55
2011-12-31	5
2012-03-31	153
2012-06-30	91
2012-09-30	110
2012-12-31	63
2013-03-31	49
2013-06-30	79
2013-09-30	112
2013-12-31	187
2014-03-31	178
2014-06-30	217
2014-09-30	287
2014-12-31	212
2015-03-31	226
2015-06-30	236
2015-09-30	226
2015-12-31	154
2016-03-31	308
2016-06-30	261
2016-09-30	279
2016-12-31	175
2017-03-31	114
2017-06-30	97
2017-09-30	103
2017-12-31	128
2018-03-31	-109
2018-06-30	62
2018-09-30	103
2018-12-31	63
2019-03-31	111
2019-06-30	14
2019-09-30	15
2019-12-31	1
2020-03-31	29
2020-06-30	16
2020-09-30	0
2020-12-31	0
2021-03-31	0
2021-06-30	12
2021-09-30	1
2021-12-31	1
2022-03-31	1
2022-06-30	1
2022-09-30	1
2022-12-31	-182
2023-03-31	0
2023-06-30	0
2023-09-30	0