Quarter	US dollars
2004-12-31	158142
2005-03-31	191015
2005-06-30	178832
2005-09-30	183164
2005-12-31	160327
2006-03-31	191987
2006-06-30	201601
2006-09-30	213918
2006-12-31	218800
2007-03-31	223751
2007-06-30	222550
2007-09-30	254424
2007-12-31	239905
2008-03-31	285769
2008-06-30	284847
2008-09-30	246186
2008-12-31	207903
2009-03-31	218447
2009-06-30	238112
2009-09-30	227317
2009-12-31	325644
2010-03-31	303207
2010-06-30	326205
2010-09-30	366505
2010-12-31	353549
2011-03-31	355228
2011-06-30	352590
2011-09-30	326893
2011-12-31	304786
2012-03-31	317789
2012-06-30	310517
2012-09-30	305775
2012-12-31	246565
2013-03-31	259832
2013-06-30	260498
2013-09-30	279157
2013-12-31	275828
2014-03-31	272213
2014-06-30	273140
2014-09-30	276830
2014-12-31	277808
2015-03-31	285429
2015-06-30	272035
2015-09-30	250948
2015-12-31	234651
2016-03-31	243632
2016-06-30	244350
2016-09-30	224782
2016-12-31	231862
2017-03-31	230852
2017-06-30	244303
2017-09-30	251408
2017-12-31	244042
2018-03-31	249385
2018-06-30	254479
2018-09-30	247762
2018-12-31	247965
2019-03-31	264681
2019-06-30	257792
2019-09-30	259196
2019-12-31	253118
2020-03-31	265997
2020-06-30	256406
2020-09-30	229145
2020-12-31	211745
2021-03-31	235674
2021-06-30	260383
2021-09-30	273745
2021-12-31	265775
2022-03-31	268568
2022-06-30	236680
2022-09-30	239910
2022-12-31	235820
2023-03-31	249682
2023-06-30	268207
2023-09-30	264983