Quarter	US dollars
2004-12-31	2
2005-03-31	2
2005-06-30	0
2005-09-30	0
2005-12-31	0
2006-03-31	0
2006-06-30	0
2006-09-30	0
2006-12-31	0
2007-03-31	6
2007-06-30	6
2007-09-30	6
2007-12-31	6
2008-03-31	0
2008-06-30	0
2008-09-30	0
2008-12-31	0
2009-03-31	0
2009-06-30	20
2009-09-30	0
2009-12-31	0
2010-03-31	0
2010-06-30	0
2010-09-30	20
2010-12-31	0
2011-03-31	0
2011-06-30	21
2011-09-30	0
2011-12-31	0
2012-03-31	0
2012-06-30	0
2012-09-30	0
2012-12-31	0
2013-03-31	0
2013-06-30	892
2013-09-30	750
2013-12-31	937
2014-03-31	1027
2014-06-30	916
2014-09-30	747
2014-12-31	749
2015-03-31	284
2015-06-30	304
2015-09-30	273
2015-12-31	379
2016-03-31	266
2016-06-30	267
2016-09-30	260
2016-12-31	145
2017-03-31	99
2017-06-30	121
2017-09-30	83
2017-12-31	12
2018-03-31	74
2018-06-30	108
2018-09-30	106
2018-12-31	59
2019-03-31	95
2019-06-30	135
2019-09-30	100
2019-12-31	217
2020-03-31	215
2020-06-30	334
2020-09-30	296
2020-12-31	109
2021-03-31	200
2021-06-30	311
2021-09-30	368
2021-12-31	334
2022-03-31	432
2022-06-30	361
2022-09-30	404
2022-12-31	417
2023-03-31	518
2023-06-30	591
2023-09-30	516