Quarter	US dollars
2004-12-31	126082
2005-03-31	131818
2005-06-30	131582
2005-09-30	130828
2005-12-31	125664
2006-03-31	128285
2006-06-30	127738
2006-09-30	140728
2006-12-31	134317
2007-03-31	148843
2007-06-30	140647
2007-09-30	165309
2007-12-31	139403
2008-03-31	143289
2008-06-30	143669
2008-09-30	154267
2008-12-31	160290
2009-03-31	171784
2009-06-30	198008
2009-09-30	199831
2009-12-31	212950
2010-03-31	204142
2010-06-30	211593
2010-09-30	233417
2010-12-31	233832
2011-03-31	244789
2011-06-30	242449
2011-09-30	249817
2011-12-31	247691
2012-03-31	249949
2012-06-30	251409
2012-09-30	255111
2012-12-31	268966
2013-03-31	275658
2013-06-30	272565
2013-09-30	284537
2013-12-31	294465
2014-03-31	290705
2014-06-30	301018
2014-09-30	307816
2014-12-31	301230
2015-03-31	313534
2015-06-30	323000
2015-09-30	322948
2015-12-31	310768
2016-03-31	320474
2016-06-30	328625
2016-09-30	337139
2016-12-31	340291
2017-03-31	342594
2017-06-30	335478
2017-09-30	349300
2017-12-31	360283
2018-03-31	361372
2018-06-30	376064
2018-09-30	376418
2018-12-31	390994
2019-03-31	385916
2019-06-30	402601
2019-09-30	405169
2019-12-31	408309
2020-03-31	397032
2020-06-30	407694
2020-09-30	427743
2020-12-31	419943
2021-03-31	423376
2021-06-30	432453
2021-09-30	430138
2021-12-31	414473
2022-03-31	431232
2022-06-30	435591
2022-09-30	436619
2022-12-31	430047
2023-03-31	435892
2023-06-30	422886
2023-09-30	423863