Quarter	US dollars
2004-12-31	2404
2005-03-31	2113
2005-06-30	2648
2005-09-30	2620
2005-12-31	2438
2006-03-31	2192
2006-06-30	2724
2006-09-30	2989
2006-12-31	1977
2007-03-31	3915
2007-06-30	2299
2007-09-30	3641
2007-12-31	4993
2008-03-31	6547
2008-06-30	5497
2008-09-30	6811
2008-12-31	12095
2009-03-31	9622
2009-06-30	7434
2009-09-30	7442
2009-12-31	6091
2010-03-31	6572
2010-06-30	10001
2010-09-30	7611
2010-12-31	9460
2011-03-31	4876
2011-06-30	6337
2011-09-30	10006
2011-12-31	9567
2012-03-31	8782
2012-06-30	9371
2012-09-30	7424
2012-12-31	17010
2013-03-31	15860
2013-06-30	15930
2013-09-30	6821
2013-12-31	4791
2014-03-31	3743
2014-06-30	6309
2014-09-30	6728
2014-12-31	7244
2015-03-31	4202
2015-06-30	2353
2015-09-30	2546
2015-12-31	2713
2016-03-31	4418
2016-06-30	6090
2016-09-30	3693
2016-12-31	2060
2017-03-31	1633
2017-06-30	1641
2017-09-30	1872
2017-12-31	2363
2018-03-31	2275
2018-06-30	960
2018-09-30	1442
2018-12-31	1707
2019-03-31	2706
2019-06-30	3434
2019-09-30	3351
2019-12-31	3011
2020-03-31	4530
2020-06-30	4742
2020-09-30	4936
2020-12-31	6134
2021-03-31	5414
2021-06-30	4799
2021-09-30	4164
2021-12-31	3779
2022-03-31	2597
2022-06-30	2862
2022-09-30	3190
2022-12-31	2596
2023-03-31	2680
2023-06-30	2777
2023-09-30	3086