Quarter	US dollars
2004-12-31	0
2005-03-31	0
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	0
2007-06-30	0
2007-09-30	0
2007-12-31	0
2008-03-31	0
2008-06-30	0
2008-09-30	0
2008-12-31	0
2009-03-31	0
2009-06-30	0
2009-09-30	0
2009-12-31	0
2010-03-31	0
2010-06-30	0
2010-09-30	0
2010-12-31	0
2011-03-31	0
2011-06-30	0
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	73
2013-09-30	0
2013-12-31	78
2014-03-31	0
2014-06-30	56
2014-09-30	47
2014-12-31	0
2015-03-31	134
2015-06-30	134
2015-09-30	200
2015-12-31	89
2016-03-31	66
2016-06-30	67
2016-09-30	0
2016-12-31	0
2017-03-31	0
2017-06-30	153
2017-09-30	334
2017-12-31	232
2018-03-31	210
2018-06-30	198
2018-09-30	194
2018-12-31	126
2019-03-31	42
2019-06-30	48
2019-09-30	59
2019-12-31	44
2020-03-31	30
2020-06-30	16
2020-09-30	0
2020-12-31	0
2021-03-31	4
2021-06-30	4
2021-09-30	4
2021-12-31	4
2022-03-31	0
2022-06-30	0
2022-09-30	0
2022-12-31	0
2023-03-31	77
2023-06-30	96
2023-09-30	75