Quarter	US dollars
2004-12-31	183420
2005-03-31	191280
2005-06-30	188498
2005-09-30	191244
2005-12-31	187694
2006-03-31	205542
2006-06-30	209264
2006-09-30	222327
2006-12-31	226632
2007-03-31	254722
2007-06-30	247305
2007-09-30	281336
2007-12-31	249344
2008-03-31	279049
2008-06-30	270220
2008-09-30	283780
2008-12-31	274987
2009-03-31	281757
2009-06-30	315143
2009-09-30	310410
2009-12-31	331252
2010-03-31	323495
2010-06-30	337091
2010-09-30	362233
2010-12-31	361283
2011-03-31	379999
2011-06-30	382157
2011-09-30	379244
2011-12-31	378733
2012-03-31	384556
2012-06-30	382487
2012-09-30	387339
2012-12-31	405052
2013-03-31	413026
2013-06-30	404023
2013-09-30	418322
2013-12-31	424685
2014-03-31	429331
2014-06-30	438726
2014-09-30	444361
2014-12-31	434353
2015-03-31	436031
2015-06-30	447658
2015-09-30	444418
2015-12-31	422915
2016-03-31	433908
2016-06-30	442320
2016-09-30	445733
2016-12-31	441726
2017-03-31	448941
2017-06-30	439465
2017-09-30	458317
2017-12-31	470849
2018-03-31	470766
2018-06-30	478901
2018-09-30	480147
2018-12-31	497754
2019-03-31	497868
2019-06-30	511039
2019-09-30	510952
2019-12-31	524364
2020-03-31	510592
2020-06-30	529797
2020-09-30	554633
2020-12-31	550187
2021-03-31	552579
2021-06-30	561787
2021-09-30	566943
2021-12-31	549277
2022-03-31	562289
2022-06-30	572879
2022-09-30	569994
2022-12-31	571690
2023-03-31	581724
2023-06-30	563659
2023-09-30	557922