Quarter	US dollars
2004-12-31	351
2005-03-31	216
2005-06-30	364
2005-09-30	285
2005-12-31	212
2006-03-31	385
2006-06-30	375
2006-09-30	362
2006-12-31	342
2007-03-31	257
2007-06-30	257
2007-09-30	322
2007-12-31	621
2008-03-31	469
2008-06-30	593
2008-09-30	257
2008-12-31	512
2009-03-31	741
2009-06-30	739
2009-09-30	683
2009-12-31	270
2010-03-31	340
2010-06-30	522
2010-09-30	484
2010-12-31	479
2011-03-31	396
2011-06-30	522
2011-09-30	692
2011-12-31	945
2012-03-31	1050
2012-06-30	792
2012-09-30	704
2012-12-31	361
2013-03-31	342
2013-06-30	338
2013-09-30	251
2013-12-31	311
2014-03-31	375
2014-06-30	475
2014-09-30	426
2014-12-31	365
2015-03-31	319
2015-06-30	568
2015-09-30	909
2015-12-31	750
2016-03-31	670
2016-06-30	669
2016-09-30	316
2016-12-31	282
2017-03-31	210
2017-06-30	287
2017-09-30	299
2017-12-31	262
2018-03-31	453
2018-06-30	287
2018-09-30	314
2018-12-31	260
2019-03-31	285
2019-06-30	235
2019-09-30	233
2019-12-31	354
2020-03-31	320
2020-06-30	545
2020-09-30	364
2020-12-31	658
2021-03-31	370
2021-06-30	377
2021-09-30	386
2021-12-31	472
2022-03-31	392
2022-06-30	381
2022-09-30	577
2022-12-31	664
2023-03-31	640
2023-06-30	562
2023-09-30	418