Quarter	US dollars
2004-12-31	676
2005-03-31	707
2005-06-30	905
2005-09-30	490
2005-12-31	1379
2006-03-31	1547
2006-06-30	1553
2006-09-30	1792
2006-12-31	1818
2007-03-31	2391
2007-06-30	2624
2007-09-30	3321
2007-12-31	3154
2008-03-31	3365
2008-06-30	4826
2008-09-30	5232
2008-12-31	4314
2009-03-31	4411
2009-06-30	4460
2009-09-30	4403
2009-12-31	4437
2010-03-31	4708
2010-06-30	5288
2010-09-30	4950
2010-12-31	5522
2011-03-31	4375
2011-06-30	5517
2011-09-30	4390
2011-12-31	4852
2012-03-31	3623
2012-06-30	4863
2012-09-30	5122
2012-12-31	5056
2013-03-31	4182
2013-06-30	4458
2013-09-30	4861
2013-12-31	3595
2014-03-31	3990
2014-06-30	3310
2014-09-30	3310
2014-12-31	3153
2015-03-31	3121
2015-06-30	3725
2015-09-30	80
2015-12-31	83
2016-03-31	89
2016-06-30	75
2016-09-30	68
2016-12-31	65
2017-03-31	69
2017-06-30	66
2017-09-30	59
2017-12-31	54
2018-03-31	52
2018-06-30	49
2018-09-30	48
2018-12-31	49
2019-03-31	60
2019-06-30	31
2019-09-30	30
2019-12-31	34
2020-03-31	31
2020-06-30	27
2020-09-30	26
2020-12-31	12
2021-03-31	12
2021-06-30	14
2021-09-30	38
2021-12-31	35
2022-03-31	33
2022-06-30	31
2022-09-30	28
2022-12-31	30
2023-03-31	29
2023-06-30	10
2023-09-30	10