Quarter	US dollars
2004-12-31	73452
2005-03-31	77643
2005-06-30	116400
2005-09-30	131022
2005-12-31	138397
2006-03-31	146865
2006-06-30	150441
2006-09-30	150080
2006-12-31	158632
2007-03-31	169284
2007-06-30	173951
2007-09-30	197512
2007-12-31	206874
2008-03-31	221879
2008-06-30	219828
2008-09-30	209224
2008-12-31	202842
2009-03-31	196623
2009-06-30	204508
2009-09-30	214046
2009-12-31	224527
2010-03-31	242061
2010-06-30	259869
2010-09-30	277409
2010-12-31	284987
2011-03-31	300447
2011-06-30	314113
2011-09-30	305429
2011-12-31	304664
2012-03-31	316357
2012-06-30	314515
2012-09-30	311219
2012-12-31	317064
2013-03-31	323885
2013-06-30	316678
2013-09-30	326458
2013-12-31	329811
2014-03-31	338028
2014-06-30	340088
2014-09-30	337980
2014-12-31	330595
2015-03-31	327577
2015-06-30	314662
2015-09-30	295015
2015-12-31	287890
2016-03-31	288947
2016-06-30	282714
2016-09-30	291313
2016-12-31	274575
2017-03-31	286554
2017-06-30	305440
2017-09-30	310973
2017-12-31	326584
2018-03-31	333354
2018-06-30	322252
2018-09-30	315442
2018-12-31	325339
2019-03-31	329044
2019-06-30	329975
2019-09-30	323230
2019-12-31	334148
2020-03-31	344581
2020-06-30	342769
2020-09-30	345904
2020-12-31	375240
2021-03-31	383017
2021-06-30	389381
2021-09-30	388966
2021-12-31	395394
2022-03-31	396717
2022-06-30	379506
2022-09-30	363272
2022-12-31	378502
2023-03-31	384245
2023-06-30	373873
2023-09-30	373471