Quarter	US dollars
2004-12-31	27
2005-03-31	36
2005-06-30	38
2005-09-30	34
2005-12-31	216
2006-03-31	330
2006-06-30	470
2006-09-30	654
2006-12-31	724
2007-03-31	1055
2007-06-30	1525
2007-09-30	1750
2007-12-31	2272
2008-03-31	2474
2008-06-30	2738
2008-09-30	1693
2008-12-31	2097
2009-03-31	1926
2009-06-30	1882
2009-09-30	379
2009-12-31	476
2010-03-31	626
2010-06-30	788
2010-09-30	1654
2010-12-31	2390
2011-03-31	2447
2011-06-30	2258
2011-09-30	2599
2011-12-31	2400
2012-03-31	2664
2012-06-30	2863
2012-09-30	2758
2012-12-31	3269
2013-03-31	7260
2013-06-30	7770
2013-09-30	6907
2013-12-31	5904
2014-03-31	6339
2014-06-30	6247
2014-09-30	5666
2014-12-31	4993
2015-03-31	5700
2015-06-30	5208
2015-09-30	4240
2015-12-31	4043
2016-03-31	4207
2016-06-30	4328
2016-09-30	4234
2016-12-31	4099
2017-03-31	4277
2017-06-30	4227
2017-09-30	4217
2017-12-31	3918
2018-03-31	3665
2018-06-30	3775
2018-09-30	3816
2018-12-31	3488
2019-03-31	3763
2019-06-30	3732
2019-09-30	3968
2019-12-31	4048
2020-03-31	4383
2020-06-30	3448
2020-09-30	3387
2020-12-31	2748
2021-03-31	2940
2021-06-30	2797
2021-09-30	2965
2021-12-31	2651
2022-03-31	2967
2022-06-30	2338
2022-09-30	2530
2022-12-31	2245
2023-03-31	2386
2023-06-30	2367
2023-09-30	2339