Quarter	US dollars
2004-12-31	1114
2005-03-31	1420
2005-06-30	1443
2005-09-30	1403
2005-12-31	1401
2006-03-31	1230
2006-06-30	1224
2006-09-30	1179
2006-12-31	1372
2007-03-31	2018
2007-06-30	2053
2007-09-30	2508
2007-12-31	2359
2008-03-31	3971
2008-06-30	2726
2008-09-30	2964
2008-12-31	2733
2009-03-31	3040
2009-06-30	2943
2009-09-30	2816
2009-12-31	2750
2010-03-31	3021
2010-06-30	2955
2010-09-30	2952
2010-12-31	2649
2011-03-31	2903
2011-06-30	3136
2011-09-30	3096
2011-12-31	3162
2012-03-31	3433
2012-06-30	5623
2012-09-30	5751
2012-12-31	6187
2013-03-31	6766
2013-06-30	6815
2013-09-30	6167
2013-12-31	6053
2014-03-31	6056
2014-06-30	5888
2014-09-30	5601
2014-12-31	5805
2015-03-31	6034
2015-06-30	6233
2015-09-30	5641
2015-12-31	5388
2016-03-31	5285
2016-06-30	5455
2016-09-30	5454
2016-12-31	5407
2017-03-31	5488
2017-06-30	6121
2017-09-30	6281
2017-12-31	6373
2018-03-31	6168
2018-06-30	6134
2018-09-30	5750
2018-12-31	5683
2019-03-31	5785
2019-06-30	6014
2019-09-30	6443
2019-12-31	6596
2020-03-31	6166
2020-06-30	6477
2020-09-30	6446
2020-12-31	6471
2021-03-31	6752
2021-06-30	6632
2021-09-30	6786
2021-12-31	6802
2022-03-31	6439
2022-06-30	6455
2022-09-30	6176
2022-12-31	5438
2023-03-31	5656
2023-06-30	5539
2023-09-30	1511