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	953
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	0
2013-09-30	0
2013-12-31	61
2014-03-31	0
2014-06-30	0
2014-09-30	0
2014-12-31	0
2015-03-31	0
2015-06-30	0
2015-09-30	0
2015-12-31	0
2016-03-31	0
2016-06-30	0
2016-09-30	0
2016-12-31	0
2017-03-31	291
2017-06-30	262
2017-09-30	255
2017-12-31	246
2018-03-31	195
2018-06-30	173
2018-09-30	146
2018-12-31	109
2019-03-31	108
2019-06-30	101
2019-09-30	94
2019-12-31	57
2020-03-31	42
2020-06-30	48
2020-09-30	58
2020-12-31	51
2021-03-31	48
2021-06-30	46
2021-09-30	46
2021-12-31	57
2022-03-31	75
2022-06-30	87
2022-09-30	86
2022-12-31	78
2023-03-31	55
2023-06-30	39
2023-09-30	51