Quarter	US dollars
2004-12-31	1027
2005-03-31	1146
2005-06-30	1266
2005-09-30	1399
2005-12-31	1372
2006-03-31	1490
2006-06-30	1548
2008-12-31	4613
2009-09-30	4462
2010-06-30	4408
2012-12-31	5581
2013-03-31	5672
2013-06-30	5648
2013-12-31	33
2014-09-30	32
2015-03-31	27
2015-06-30	28
2015-09-30	27
2015-12-31	28
2016-03-31	1
2016-06-30	4
2016-09-30	1
2016-12-31	0
2017-03-31	0
2017-06-30	1
2017-09-30	4
2017-12-31	7
2018-03-31	4
2018-06-30	0
2018-09-30	3
2018-12-31	0
2019-03-31	10
2019-06-30	5
2019-09-30	0
2019-12-31	0
2020-03-31	10
2020-06-30	0
2020-09-30	0
2020-12-31	0
2021-03-31	74
2021-06-30	7
2021-09-30	7
2021-12-31	7
2022-03-31	4
2022-06-30	5
2022-09-30	5
2022-12-31	5
2023-03-31	6
2023-06-30	15
2023-09-30	40