Quarter	US dollars
2004-12-31	167
2005-03-31	244
2005-06-30	161
2005-09-30	331
2005-12-31	259
2006-03-31	524
2006-06-30	424
2006-09-30	1024
2006-12-31	1292
2007-03-31	735
2007-06-30	249
2007-09-30	664
2007-12-31	263
2008-03-31	558
2008-06-30	175
2008-09-30	433
2008-12-31	187
2009-03-31	6
2009-06-30	-166
2009-09-30	339
2009-12-31	47
2010-03-31	1207
2010-06-30	1375
2010-09-30	1776
2010-12-31	3579
2011-03-31	7226
2011-06-30	6305
2011-09-30	6688
2011-12-31	5844
2012-03-31	7896
2012-06-30	7225
2012-09-30	7351
2012-12-31	8516
2013-03-31	6684
2013-06-30	6144
2013-09-30	6128
2013-12-31	7606
2014-03-31	6576
2014-06-30	5557
2014-09-30	4590
2014-12-31	7546
2015-03-31	6849
2015-06-30	4977
2015-09-30	4059
2015-12-31	5384
2016-03-31	4246
2016-06-30	2820
2016-09-30	4364
2016-12-31	2319
2017-03-31	2778
2017-06-30	1825
2017-09-30	1698
2017-12-31	1216
2018-03-31	2297
2018-06-30	1711
2018-09-30	2457
2018-12-31	2365
2019-03-31	2743
2019-06-30	3019
2019-09-30	1796
2019-12-31	2454
2020-03-31	1581
2020-06-30	1358
2020-09-30	1127
2020-12-31	1391
2021-03-31	1399
2021-06-30	1455
2021-09-30	1370
2021-12-31	1404
2022-03-31	1096
2022-06-30	984
2022-09-30	886
2022-12-31	1200
2023-03-31	1322
2023-06-30	792
2023-09-30	937