Quarter	US dollars
2004-12-31	641823
2005-03-31	732670
2005-06-30	682496
2005-09-30	766910
2005-12-31	696473
2006-03-31	779718
2006-06-30	796429
2006-09-30	835651
2006-12-31	861239
2007-03-31	982370
2007-06-30	992381
2007-09-30	1134685
2007-12-31	1024909
2008-03-31	1200969
2008-06-30	1030291
2008-09-30	1037027
2008-12-31	823692
2009-03-31	704750
2009-06-30	746434
2009-09-30	724296
2009-12-31	726876
2010-03-31	807594
2010-06-30	763910
2010-09-30	829731
2010-12-31	794917
2011-03-31	829182
2011-06-30	829005
2011-09-30	771156
2011-12-31	662971
2012-03-31	733550
2012-06-30	667287
2012-09-30	661302
2012-12-31	616190
2013-03-31	659593
2013-06-30	690183
2013-09-30	688766
2013-12-31	624306
2014-03-31	690342
2014-06-30	713063
2014-09-30	656093
2014-12-31	589180
2015-03-31	583548
2015-06-30	526325
2015-09-30	516455
2015-12-31	448865
2016-03-31	457666
2016-06-30	480162
2016-09-30	425580
2016-12-31	414780
2017-03-31	452790
2017-06-30	474023
2017-09-30	479313
2017-12-31	466826
2018-03-31	510575
2018-06-30	500872
2018-09-30	499571
2018-12-31	470909
2019-03-31	508567
2019-06-30	502493
2019-09-30	490914
2019-12-31	461062
2020-03-31	555133
2020-06-30	506964
2020-09-30	532000
2020-12-31	544242
2021-03-31	569448
2021-06-30	566783
2021-09-30	576672
2021-12-31	556615
2022-03-31	608758
2022-06-30	585478
2022-09-30	601954
2022-12-31	611160
2023-03-31	652993
2023-06-30	666639
2023-09-30	661221