Quarter	US dollars
2004-12-31	1922
2005-03-31	2898
2005-06-30	2904
2005-09-30	3263
2005-12-31	2412
2006-03-31	2820
2006-06-30	2913
2006-09-30	4345
2006-12-31	4626
2007-03-31	4485
2007-06-30	3309
2007-09-30	4366
2007-12-31	5863
2008-03-31	5241
2008-06-30	4502
2008-09-30	3333
2008-12-31	2399
2009-03-31	1556
2009-06-30	1858
2009-09-30	2599
2009-12-31	1857
2010-03-31	1859
2010-06-30	2057
2010-09-30	3266
2010-12-31	3624
2011-03-31	4814
2011-06-30	4631
2011-09-30	3309
2011-12-31	4992
2012-03-31	7080
2012-06-30	6398
2012-09-30	7181
2012-12-31	7114
2013-03-31	7322
2013-06-30	7679
2013-09-30	7180
2013-12-31	6540
2014-03-31	5402
2014-06-30	5758
2014-09-30	5616
2014-12-31	4743
2015-03-31	4451
2015-06-30	5544
2015-09-30	3732
2015-12-31	3616
2016-03-31	3405
2016-06-30	2898
2016-09-30	3766
2016-12-31	3743
2017-03-31	4521
2017-06-30	5131
2017-09-30	5173
2017-12-31	5455
2018-03-31	4940
2018-06-30	4816
2018-09-30	5102
2018-12-31	4557
2019-03-31	5153
2019-06-30	4184
2019-09-30	4041
2019-12-31	4419
2020-03-31	3676
2020-06-30	3997
2020-09-30	4355
2020-12-31	3867
2021-03-31	5202
2021-06-30	5182
2021-09-30	4872
2021-12-31	5201
2022-03-31	6005
2022-06-30	5359
2022-09-30	4676
2022-12-31	5726
2023-03-31	5682
2023-06-30	9938
2023-09-30	4570