Quarter	US dollars
2004-12-31	710
2005-03-31	733
2005-06-30	934
2005-09-30	529
2005-12-31	1412
2006-03-31	1603
2006-06-30	1589
2006-09-30	1842
2006-12-31	1941
2007-03-31	2448
2007-06-30	2679
2007-09-30	3380
2007-12-31	3215
2008-03-31	3476
2008-06-30	4906
2008-09-30	5320
2008-12-31	4411
2009-03-31	4514
2009-06-30	4547
2009-09-30	4508
2009-12-31	4570
2010-03-31	4823
2010-06-30	5508
2010-09-30	5257
2010-12-31	5811
2011-03-31	4633
2011-06-30	5742
2011-09-30	4588
2011-12-31	5104
2012-03-31	3859
2012-06-30	5112
2012-09-30	5355
2012-12-31	5289
2013-03-31	4448
2013-06-30	4694
2013-09-30	5078
2013-12-31	3821
2014-03-31	4263
2014-06-30	3561
2014-09-30	3521
2014-12-31	3343
2015-03-31	3324
2015-06-30	3923
2015-09-30	82
2015-12-31	83
2016-03-31	104
2016-06-30	91
2016-09-30	83
2016-12-31	90
2017-03-31	81
2017-06-30	74
2017-09-30	93
2017-12-31	49
2018-03-31	52
2018-06-30	55
2018-09-30	53
2018-12-31	56
2019-03-31	64
2019-06-30	34
2019-09-30	33
2019-12-31	40
2020-03-31	32
2020-06-30	27
2020-09-30	28
2020-12-31	16
2021-03-31	19
2021-06-30	15
2021-09-30	39
2021-12-31	36
2022-03-31	34
2022-06-30	32
2022-09-30	30
2022-12-31	32
2023-03-31	31
2023-06-30	12
2023-09-30	12