Quarter	US dollars
2004-12-31	1223
2005-03-31	27653
2005-06-30	21342
2005-09-30	37306
2005-12-31	54263
2006-03-31	66019
2006-06-30	74753
2006-09-30	55166
2006-12-31	45555
2007-03-31	58902
2007-06-30	46663
2007-09-30	72733
2007-12-31	75630
2008-03-31	70318
2008-06-30	79321
2008-09-30	102396
2008-12-31	125663
2009-03-31	145835
2009-06-30	126140
2009-09-30	155802
2009-12-31	172855
2010-03-31	236410
2010-06-30	242612
2010-09-30	267835
2010-12-31	225337
2011-03-31	285273
2011-06-30	252471
2011-09-30	272650
2011-12-31	293539
2012-03-31	290937
2012-06-30	282533
2012-09-30	283677
2012-12-31	301674
2013-03-31	262306
2013-06-30	317116
2013-09-30	306794
2013-12-31	268106
2014-03-31	273642
2014-06-30	256602
2014-09-30	264693
2014-12-31	302694
2015-03-31	259488
2015-06-30	263514
2015-09-30	263540
2015-12-31	226624
2016-03-31	227267
2016-06-30	240697
2016-09-30	196980
2016-12-31	177584
2017-03-31	168332
2017-06-30	203626
2017-09-30	245770
2017-12-31	215340
2018-03-31	257581
2018-06-30	237320
2018-09-30	238781
2018-12-31	252170
2019-03-31	265451
2019-06-30	270753
2019-09-30	274610
2019-12-31	258661
2020-03-31	309091
2020-06-30	303454
2020-09-30	286217
2020-12-31	270193
2021-03-31	316599
2021-06-30	304036
2021-09-30	326453
2021-12-31	313867
2022-03-31	317065
2022-06-30	302498
2022-09-30	264328
2022-12-31	306056
2023-03-31	353443
2023-06-30	382287
2023-09-30	376837