Quarter	US dollars
2004-12-31	340
2005-03-31	879
2005-06-30	704
2005-09-30	837
2005-12-31	1040
2006-03-31	874
2006-06-30	1102
2006-09-30	1037
2006-12-31	1074
2007-03-31	1406
2007-06-30	1473
2007-09-30	1679
2007-12-31	1969
2008-03-31	2174
2008-06-30	1960
2008-09-30	2085
2008-12-31	1824
2009-03-31	1803
2009-06-30	1548
2009-09-30	1516
2009-12-31	1694
2010-03-31	736
2010-06-30	830
2010-09-30	1322
2010-12-31	2154
2011-03-31	2111
2011-06-30	2216
2011-09-30	2673
2011-12-31	3748
2012-03-31	3647
2012-06-30	3054
2012-09-30	2975
2012-12-31	4545
2013-03-31	7250
2013-06-30	8216
2013-09-30	7331
2013-12-31	7074
2014-03-31	6874
2014-06-30	5938
2014-09-30	6642
2014-12-31	6146
2015-03-31	6968
2015-06-30	7361
2015-09-30	8251
2015-12-31	7675
2016-03-31	7740
2016-06-30	8155
2016-09-30	7492
2016-12-31	7365
2017-03-31	7320
2017-06-30	6530
2017-09-30	6550
2017-12-31	6154
2018-03-31	7052
2018-06-30	7621
2018-09-30	8983
2018-12-31	8705
2019-03-31	8871
2019-06-30	8707
2019-09-30	9881
2019-12-31	9752
2020-03-31	10628
2020-06-30	10378
2020-09-30	10711
2020-12-31	8866
2021-03-31	9257
2021-06-30	8378
2021-09-30	8525
2021-12-31	7517
2022-03-31	8374
2022-06-30	8056
2022-09-30	8622
2022-12-31	8005
2023-03-31	8018
2023-06-30	6707
2023-09-30	6688