Quarter	US dollars
2004-12-31	2
2005-03-31	5000
2005-06-30	9101
2005-09-30	10075
2005-12-31	9632
2006-03-31	10945
2006-06-30	11683
2006-09-30	11484
2006-12-31	12611
2007-03-31	12797
2007-06-30	7048
2007-09-30	15570
2007-12-31	7293
2008-03-31	13589
2008-06-30	13915
2008-09-30	10776
2008-12-31	0
2009-03-31	8654
2009-06-30	9209
2009-09-30	0
2009-12-31	9353
2010-03-31	10106
2010-06-30	10
2010-09-30	1243
2010-12-31	59
2011-03-31	61
2011-06-30	55
2011-09-30	17
2011-12-31	23
2012-03-31	26
2012-06-30	24
2012-09-30	21
2012-12-31	23
2013-03-31	21
2013-06-30	20
2013-09-30	7114
2013-12-31	23
2014-03-31	20
2014-06-30	22
2014-09-30	26
2014-12-31	22
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	0
2017-06-30	0
2017-09-30	0
2017-12-31	0
2018-03-31	0
2018-06-30	0
2018-09-30	0
2018-12-31	0
2019-03-31	0
2019-06-30	0
2019-09-30	0
2019-12-31	0
2020-03-31	0
2020-06-30	0
2020-09-30	0
2020-12-31	0
2021-03-31	0
2021-06-30	0
2021-09-30	0
2021-12-31	0
2022-03-31	0
2022-06-30	0
2022-09-30	0
2022-12-31	0
2023-03-31	0
2023-06-30	0
2023-09-30	0