Quarter	US dollars
2004-12-31	10
2005-03-31	6
2005-06-30	0
2005-09-30	0
2005-12-31	0
2006-03-31	2
2006-06-30	0
2006-09-30	13
2006-12-31	22
2007-03-31	4
2007-06-30	24
2007-09-30	4
2007-12-31	20
2008-03-31	34
2008-06-30	60
2008-09-30	0
2008-12-31	111
2009-03-31	205
2009-06-30	96
2009-09-30	205
2009-12-31	124
2010-03-31	167
2010-06-30	787
2010-09-30	310
2010-12-31	554
2011-03-31	518
2011-06-30	291
2011-09-30	981
2011-12-31	461
2012-03-31	104
2012-06-30	226
2012-09-30	333
2012-12-31	196
2013-03-31	307
2013-06-30	382
2013-09-30	282
2013-12-31	312
2014-03-31	350
2014-06-30	207
2014-09-30	248
2014-12-31	478
2015-03-31	880
2015-06-30	741
2015-09-30	312
2015-12-31	245
2016-03-31	428
2016-06-30	564
2016-09-30	353
2016-12-31	231
2017-03-31	1073
2017-06-30	1298
2017-09-30	1202
2017-12-31	1605
2018-03-31	1802
2018-06-30	1666
2018-09-30	1594
2018-12-31	304
2019-03-31	644
2019-06-30	33
2019-09-30	9
2019-12-31	202
2020-03-31	47
2020-06-30	146
2020-09-30	8
2020-12-31	7
2021-03-31	12
2021-06-30	37
2021-09-30	24
2021-12-31	26
2022-03-31	22
2022-06-30	17
2022-09-30	18
2022-12-31	-63
2023-03-31	27
2023-06-30	28
2023-09-30	31