Quarter	US dollars
2004-12-31	0
2005-03-31	0
2005-06-30	0
2005-09-30	0
2005-12-31	12
2006-03-31	0
2006-06-30	0
2006-09-30	0
2006-12-31	0
2007-03-31	0
2007-06-30	0
2007-09-30	0
2007-12-31	185
2008-03-31	99
2008-06-30	78
2008-09-30	103
2008-12-31	0
2009-03-31	0
2009-06-30	3
2009-09-30	3
2009-12-31	86
2010-03-31	162
2010-06-30	78
2010-09-30	35
2010-12-31	17
2011-03-31	18
2011-06-30	2
2011-09-30	0
2011-12-31	73
2012-03-31	193
2012-06-30	25
2012-09-30	3
2012-12-31	32
2013-03-31	67
2013-06-30	265
2013-09-30	249
2013-12-31	12
2014-03-31	53
2014-06-30	50
2014-09-30	3
2014-12-31	0
2015-03-31	287
2015-06-30	299
2015-09-30	192
2015-12-31	188
2016-03-31	183
2016-06-30	173
2016-09-30	165
2016-12-31	165
2017-03-31	0
2017-06-30	4
2017-09-30	0
2017-12-31	4
2018-03-31	4
2018-06-30	4
2018-09-30	0
2018-12-31	349
2019-03-31	265
2019-06-30	193
2019-09-30	450
2019-12-31	441
2020-03-31	320
2020-06-30	267
2020-09-30	269
2020-12-31	202
2021-03-31	150
2021-06-30	206
2021-09-30	142
2021-12-31	268
2022-03-31	262
2022-06-30	13
2022-09-30	10
2022-12-31	10
2023-03-31	154
2023-06-30	165
2023-09-30	164