Quarter	US dollars
2004-12-31	887
2005-03-31	713
2005-06-30	739
2005-09-30	649
2005-12-31	565
2006-03-31	572
2006-06-30	681
2006-09-30	568
2006-12-31	534
2007-03-31	533
2007-06-30	710
2007-09-30	833
2007-12-31	1169
2008-03-31	2087
2008-06-30	2416
2008-09-30	2659
2008-12-31	3564
2009-03-31	2955
2009-06-30	2032
2009-09-30	1809
2009-12-31	1494
2010-03-31	1250
2010-06-30	2255
2010-09-30	2526
2010-12-31	2735
2011-03-31	4620
2011-06-30	4390
2011-09-30	5845
2011-12-31	3290
2012-03-31	2846
2012-06-30	3515
2012-09-30	3803
2012-12-31	2960
2013-03-31	2805
2013-06-30	3394
2013-09-30	4452
2013-12-31	5497
2014-03-31	7421
2014-06-30	2648
2014-09-30	3178
2014-12-31	3128
2015-03-31	4984
2015-06-30	4425
2015-09-30	3985
2015-12-31	4386
2016-03-31	4508
2016-06-30	5886
2016-09-30	3246
2016-12-31	5501
2017-03-31	3780
2017-06-30	3466
2017-09-30	3990
2017-12-31	3536
2018-03-31	4731
2018-06-30	3144
2018-09-30	4031
2018-12-31	3491
2019-03-31	2960
2019-06-30	2668
2019-09-30	4428
2019-12-31	3048
2020-03-31	5450
2020-06-30	4422
2020-09-30	5335
2020-12-31	7818
2021-03-31	5673
2021-06-30	6002
2021-09-30	4138
2021-12-31	4972
2022-03-31	4742
2022-06-30	5462
2022-09-30	6848
2022-12-31	4714
2023-03-31	3623
2023-06-30	5363
2023-09-30	5537