Quarter	US dollars
2004-12-31	2577
2005-03-31	2588
2005-06-30	2268
2005-09-30	2230
2005-12-31	1986
2006-03-31	3041
2006-06-30	2870
2006-09-30	3563
2006-12-31	3810
2007-03-31	4193
2007-06-30	4978
2007-09-30	6864
2007-12-31	6218
2008-03-31	6056
2008-06-30	7517
2008-09-30	8804
2008-12-31	9679
2009-03-31	5460
2009-06-30	4652
2009-09-30	10658
2009-12-31	10365
2010-03-31	10145
2010-06-30	9490
2010-09-30	12448
2010-12-31	10647
2011-03-31	9682
2011-06-30	11867
2011-09-30	1778
2011-12-31	2090
2012-03-31	3080
2012-06-30	3129
2012-09-30	1873
2012-12-31	1829
2013-03-31	1800
2013-06-30	2061
2013-09-30	2006
2013-12-31	3985
2014-03-31	1002
2014-06-30	1609
2014-09-30	1307
2014-12-31	849
2015-03-31	1734
2015-06-30	900
2015-09-30	626
2015-12-31	1165
2016-03-31	1346
2016-06-30	827
2016-09-30	581
2016-12-31	520
2017-03-31	529
2017-06-30	2806
2017-09-30	1378
2017-12-31	750
2018-03-31	1144
2018-06-30	786
2018-09-30	861
2018-12-31	839
2019-03-31	659
2019-06-30	1475
2019-09-30	787
2019-12-31	1016
2020-03-31	558
2020-06-30	488
2020-09-30	514
2020-12-31	635
2021-03-31	738
2021-06-30	952
2021-09-30	881
2021-12-31	908
2022-03-31	1006
2022-06-30	1222
2022-09-30	1922
2022-12-31	2809
2023-03-31	2808
2023-06-30	3029
2023-09-30	3412