Quarter	US dollars
2004-12-31	810
2005-03-31	688
2005-06-30	864
2005-09-30	913
2005-12-31	997
2006-03-31	1634
2006-06-30	1320
2006-09-30	1472
2006-12-31	2033
2007-03-31	1530
2007-06-30	2103
2007-09-30	2288
2007-12-31	2680
2008-03-31	2975
2008-06-30	2527
2008-09-30	1679
2008-12-31	3055
2009-03-31	3309
2009-06-30	2679
2009-09-30	2764
2009-12-31	2488
2010-03-31	2028
2010-06-30	2129
2010-09-30	1875
2010-12-31	2201
2011-03-31	3347
2011-06-30	3377
2011-09-30	3610
2011-12-31	3984
2012-03-31	4048
2012-06-30	4544
2012-09-30	4756
2012-12-31	4912
2013-03-31	5573
2013-06-30	5839
2013-09-30	6610
2013-12-31	5922
2014-03-31	6161
2014-06-30	6305
2014-09-30	5371
2014-12-31	5912
2015-03-31	6213
2015-06-30	5867
2015-09-30	4926
2015-12-31	4942
2016-03-31	4930
2016-06-30	4719
2016-09-30	5038
2016-12-31	4914
2017-03-31	5080
2017-06-30	3984
2017-09-30	6839
2017-12-31	6741
2018-03-31	6937
2018-06-30	5767
2018-09-30	6191
2018-12-31	7102
2019-03-31	6712
2019-06-30	7037
2019-09-30	7850
2019-12-31	7758
2020-03-31	7377
2020-06-30	7811
2020-09-30	6855
2020-12-31	6861
2021-03-31	7487
2021-06-30	8315
2021-09-30	8696
2021-12-31	8593
2022-03-31	8245
2022-06-30	7223
2022-09-30	7067
2022-12-31	7282
2023-03-31	6896
2023-06-30	6677
2023-09-30	6835