Quarter	US dollars
2004-12-31	398110
2005-03-31	447979
2005-06-30	416027
2005-09-30	466204
2005-12-31	391796
2006-03-31	468938
2006-06-30	454036
2006-09-30	488407
2006-12-31	509990
2007-03-31	591836
2007-06-30	620100
2007-09-30	677869
2007-12-31	620647
2008-03-31	699815
2008-06-30	576813
2008-09-30	553900
2008-12-31	424620
2009-03-31	344501
2009-06-30	375816
2009-09-30	383811
2009-12-31	377048
2010-03-31	438055
2010-06-30	380367
2010-09-30	426609
2010-12-31	352023
2011-03-31	369464
2011-06-30	358758
2011-09-30	340802
2011-12-31	256636
2012-03-31	271624
2012-06-30	236741
2012-09-30	243722
2012-12-31	221497
2013-03-31	253649
2013-06-30	249159
2013-09-30	250212
2013-12-31	227281
2014-03-31	256594
2014-06-30	265638
2014-09-30	237558
2014-12-31	208084
2015-03-31	196803
2015-06-30	181412
2015-09-30	175526
2015-12-31	147858
2016-03-31	157001
2016-06-30	156890
2016-09-30	142253
2016-12-31	123937
2017-03-31	152522
2017-06-30	187999
2017-09-30	176626
2017-12-31	165564
2018-03-31	197036
2018-06-30	183534
2018-09-30	185931
2018-12-31	166729
2019-03-31	203965
2019-06-30	193618
2019-09-30	202429
2019-12-31	181491
2020-03-31	229609
2020-06-30	221578
2020-09-30	257491
2020-12-31	256470
2021-03-31	261343
2021-06-30	250680
2021-09-30	263305
2021-12-31	233132
2022-03-31	276535
2022-06-30	256643
2022-09-30	280579
2022-12-31	297751
2023-03-31	328121
2023-06-30	334329
2023-09-30	326488