Quarter	US dollars
2004-12-31	126998
2005-03-31	131619
2005-06-30	166928
2005-09-30	224678
2005-12-31	237198
2006-03-31	255495
2006-06-30	255639
2006-09-30	260705
2006-12-31	286931
2007-03-31	302414
2007-06-30	325920
2007-09-30	369324
2007-12-31	387869
2008-03-31	404842
2008-06-30	418570
2008-09-30	413073
2008-12-31	379059
2009-03-31	371008
2009-06-30	374940
2009-09-30	391824
2009-12-31	398244
2010-03-31	416829
2010-06-30	456663
2010-09-30	488542
2010-12-31	503916
2011-03-31	509672
2011-06-30	531203
2011-09-30	506866
2011-12-31	494157
2012-03-31	506283
2012-06-30	501800
2012-09-30	509696
2012-12-31	506084
2013-03-31	496891
2013-06-30	486644
2013-09-30	505394
2013-12-31	498240
2014-03-31	509757
2014-06-30	517747
2014-09-30	510709
2014-12-31	503736
2015-03-31	492472
2015-06-30	489402
2015-09-30	459410
2015-12-31	444763
2016-03-31	442026
2016-06-30	444164
2016-09-30	418011
2016-12-31	399806
2017-03-31	418556
2017-06-30	392090
2017-09-30	401875
2017-12-31	408203
2018-03-31	412002
2018-06-30	392286
2018-09-30	383078
2018-12-31	384224
2019-03-31	397614
2019-06-30	407960
2019-09-30	404329
2019-12-31	412633
2020-03-31	399609
2020-06-30	395127
2020-09-30	392411
2020-12-31	413595
2021-03-31	409548
2021-06-30	426595
2021-09-30	418965
2021-12-31	428164
2022-03-31	425269
2022-06-30	422074
2022-09-30	404539
2022-12-31	417747
2023-03-31	415766
2023-06-30	413573
2023-09-30	401454