Quarter	US dollars
2004-12-31	751
2005-03-31	826
2005-06-30	819
2005-09-30	1601
2005-12-31	2340
2006-03-31	2884
2006-06-30	2376
2006-09-30	2397
2006-12-31	3315
2007-03-31	3399
2007-06-30	5112
2007-09-30	5460
2007-12-31	6072
2008-03-31	7048
2008-06-30	6916
2008-09-30	6155
2008-12-31	4905
2009-03-31	3983
2009-06-30	3819
2009-09-30	4219
2009-12-31	3536
2010-03-31	3634
2010-06-30	4498
2010-09-30	5606
2010-12-31	4678
2011-03-31	5251
2011-06-30	5472
2011-09-30	4954
2011-12-31	5359
2012-03-31	5590
2012-06-30	5302
2012-09-30	5518
2012-12-31	5164
2013-03-31	5368
2013-06-30	5131
2013-09-30	5859
2013-12-31	8834
2014-03-31	7059
2014-06-30	6888
2014-09-30	7033
2014-12-31	5379
2015-03-31	5303
2015-06-30	5288
2015-09-30	4126
2015-12-31	4281
2016-03-31	3471
2016-06-30	3275
2016-09-30	2945
2016-12-31	2703
2017-03-31	2817
2017-06-30	2219
2017-09-30	2479
2017-12-31	2012
2018-03-31	2443
2018-06-30	1837
2018-09-30	1448
2018-12-31	1688
2019-03-31	1627
2019-06-30	1802
2019-09-30	1636
2019-12-31	1550
2020-03-31	1428
2020-06-30	1337
2020-09-30	1435
2020-12-31	1874
2021-03-31	1479
2021-06-30	750
2021-09-30	789
2021-12-31	682
2022-03-31	370
2022-06-30	203
2022-09-30	172
2022-12-31	173
2023-03-31	157
2023-06-30	155
2023-09-30	108