Quarter	US dollars
2004-12-31	217
2005-03-31	204
2005-06-30	194
2005-09-30	225
2005-12-31	378
2006-03-31	470
2006-06-30	407
2006-09-30	800
2006-12-31	462
2007-03-31	408
2007-06-30	449
2007-09-30	501
2007-12-31	587
2008-03-31	2117
2008-06-30	1924
2008-09-30	1476
2008-12-31	1307
2009-03-31	1248
2009-06-30	1354
2009-09-30	1238
2009-12-31	1310
2010-03-31	1509
2010-06-30	1417
2010-09-30	907
2010-12-31	3375
2011-03-31	2701
2011-06-30	3230
2011-09-30	8868
2011-12-31	8649
2012-03-31	11048
2012-06-30	6954
2012-09-30	10083
2012-12-31	14993
2013-03-31	20250
2013-06-30	19673
2013-09-30	18877
2013-12-31	13574
2014-03-31	12350
2014-06-30	12696
2014-09-30	11256
2014-12-31	9576
2015-03-31	8286
2015-06-30	7322
2015-09-30	6328
2015-12-31	5827
2016-03-31	6124
2016-06-30	5372
2016-09-30	5155
2016-12-31	4723
2017-03-31	4788
2017-06-30	4270
2017-09-30	4111
2017-12-31	4404
2018-03-31	3663
2018-06-30	2976
2018-09-30	5742
2018-12-31	2681
2019-03-31	2683
2019-06-30	2341
2019-09-30	2136
2019-12-31	1914
2020-03-31	1769
2020-06-30	1597
2020-09-30	1561
2020-12-31	1455
2021-03-31	1424
2021-06-30	1065
2021-09-30	1065
2021-12-31	969
2022-03-31	977
2022-06-30	857
2022-09-30	895
2022-12-31	799
2023-03-31	752
2023-06-30	602
2023-09-30	552