Quarter	US dollars
2004-12-31	5069
2005-03-31	4664
2005-06-30	5078
2005-09-30	5015
2005-12-31	5332
2006-03-31	5623
2006-06-30	5413
2006-09-30	4954
2006-12-31	5517
2007-03-31	5619
2007-06-30	6786
2007-09-30	7223
2007-12-31	6453
2008-03-31	7193
2008-06-30	8000
2008-09-30	6136
2008-12-31	5354
2009-03-31	5599
2009-06-30	5765
2009-09-30	5743
2009-12-31	5477
2010-03-31	6625
2010-06-30	5558
2010-09-30	6181
2010-12-31	4653
2011-03-31	5359
2011-06-30	3958
2011-09-30	3205
2011-12-31	2461
2012-03-31	1766
2012-06-30	1125
2012-09-30	1013
2012-12-31	1243
2013-03-31	2441
2013-06-30	1958
2013-09-30	593
2013-12-31	2415
2014-03-31	2573
2014-06-30	2440
2014-09-30	1699
2014-12-31	1356
2015-03-31	1439
2015-06-30	1809
2015-09-30	1651
2015-12-31	1111
2016-03-31	1121
2016-06-30	1895
2016-09-30	1374
2016-12-31	571
2017-03-31	695
2017-06-30	1560
2017-09-30	641
2017-12-31	521
2018-03-31	1180
2018-06-30	1083
2018-09-30	583
2018-12-31	709
2019-03-31	529
2019-06-30	393
2019-09-30	882
2019-12-31	925
2020-03-31	1026
2020-06-30	912
2020-09-30	604
2020-12-31	343
2021-03-31	353
2021-06-30	580
2021-09-30	715
2021-12-31	319
2022-03-31	104
2022-06-30	156
2022-09-30	29
2022-12-31	574
2023-03-31	839
2023-06-30	1773
2023-09-30	1398