Quarter	US dollars
2004-12-31	207317
2005-03-31	221816
2005-06-30	221393
2005-09-30	229313
2005-12-31	227832
2006-03-31	244062
2006-06-30	252614
2006-09-30	267702
2006-12-31	280976
2007-03-31	277330
2007-06-30	297575
2007-09-30	351678
2007-12-31	355406
2008-03-31	369383
2008-06-30	377237
2008-09-30	393593
2008-12-31	333205
2009-03-31	335322
2009-06-30	346762
2009-09-30	353776
2009-12-31	339878
2010-03-31	339383
2010-06-30	355781
2010-09-30	380348
2010-12-31	383106
2011-03-31	410767
2011-06-30	406660
2011-09-30	375959
2011-12-31	378391
2012-03-31	391133
2012-06-30	397987
2012-09-30	411131
2012-12-31	401612
2013-03-31	400825
2013-06-30	399531
2013-09-30	416881
2013-12-31	420312
2014-03-31	417509
2014-06-30	444122
2014-09-30	438835
2014-12-31	447705
2015-03-31	447325
2015-06-30	446586
2015-09-30	442983
2015-12-31	418454
2016-03-31	415787
2016-06-30	430355
2016-09-30	429521
2016-12-31	436793
2017-03-31	452063
2017-06-30	478827
2017-09-30	487948
2017-12-31	506055
2018-03-31	487534
2018-06-30	493764
2018-09-30	489250
2018-12-31	485620
2019-03-31	496800
2019-06-30	518074
2019-09-30	524270
2019-12-31	540236
2020-03-31	544365
2020-06-30	524544
2020-09-30	534369
2020-12-31	519212
2021-03-31	523182
2021-06-30	548033
2021-09-30	536758
2021-12-31	554460
2022-03-31	550116
2022-06-30	549320
2022-09-30	524854
2022-12-31	527906
2023-03-31	537365
2023-06-30	532261
2023-09-30	526343