Quarter	US dollars
2004-12-31	326
2005-03-31	416
2005-06-30	522
2005-09-30	426
2005-12-31	1236
2006-03-31	1348
2006-06-30	908
2006-09-30	1233
2006-12-31	1121
2007-03-31	2940
2007-06-30	3325
2007-09-30	3893
2007-12-31	4350
2008-03-31	4675
2008-06-30	5007
2008-09-30	4870
2008-12-31	4303
2009-03-31	4954
2009-06-30	4954
2009-09-30	4774
2009-12-31	4852
2010-03-31	5189
2010-06-30	4945
2010-09-30	4238
2010-12-31	4293
2011-03-31	4427
2011-06-30	4439
2011-09-30	3770
2011-12-31	3876
2012-03-31	3914
2012-06-30	3940
2012-09-30	3747
2012-12-31	3799
2013-03-31	2141
2013-06-30	3972
2013-09-30	3917
2013-12-31	3649
2014-03-31	3728
2014-06-30	3194
2014-09-30	3142
2014-12-31	2998
2015-03-31	2827
2015-06-30	2441
2015-09-30	67
2015-12-31	70
2016-03-31	75
2016-06-30	60
2016-09-30	62
2016-12-31	62
2017-03-31	58
2017-06-30	64
2017-09-30	52
2017-12-31	54
2018-03-31	55
2018-06-30	54
2018-09-30	53
2018-12-31	49
2019-03-31	48
2019-06-30	23
2019-09-30	22
2019-12-31	29
2020-03-31	25
2020-06-30	9
2020-09-30	9
2020-12-31	10
2021-03-31	10
2021-06-30	7
2021-09-30	31
2021-12-31	31
2022-03-31	26
2022-06-30	24
2022-09-30	21
2022-12-31	24
2023-03-31	25
2023-06-30	10
2023-09-30	6