Quarter	US dollars
2004-12-31	15
2005-03-31	34
2005-06-30	4
2005-09-30	2
2005-12-31	2
2006-03-31	0
2006-06-30	0
2006-09-30	2
2006-12-31	10
2007-03-31	2
2007-06-30	2
2007-09-30	0
2007-12-31	8
2008-03-31	0
2008-06-30	2
2008-09-30	2
2008-12-31	0
2009-03-31	75
2009-06-30	239
2009-09-30	22
2009-12-31	241
2010-03-31	150
2010-06-30	241
2010-09-30	418
2010-12-31	1052
2011-03-31	680
2011-06-30	964
2011-09-30	4155
2011-12-31	4074
2012-03-31	6616
2012-06-30	6783
2012-09-30	6011
2012-12-31	7214
2013-03-31	6587
2013-06-30	6454
2013-09-30	5880
2013-12-31	4087
2014-03-31	4087
2014-06-30	3927
2014-09-30	3967
2014-12-31	3381
2015-03-31	3299
2015-06-30	3273
2015-09-30	3131
2015-12-31	2561
2016-03-31	2334
2016-06-30	2201
2016-09-30	2182
2016-12-31	2007
2017-03-31	1800
2017-06-30	1669
2017-09-30	1433
2017-12-31	1273
2018-03-31	1012
2018-06-30	1010
2018-09-30	599
2018-12-31	867
2019-03-31	805
2019-06-30	736
2019-09-30	696
2019-12-31	754
2020-03-31	712
2020-06-30	712
2020-09-30	770
2020-12-31	725
2021-03-31	666
2021-06-30	637
2021-09-30	646
2021-12-31	771
2022-03-31	809
2022-06-30	796
2022-09-30	887
2022-12-31	943
2023-03-31	622
2023-06-30	796
2023-09-30	765