Quarter	US dollars
2004-12-31	98020
2005-03-31	99804
2005-06-30	105833
2005-09-30	123077
2005-12-31	100838
2006-03-31	102729
2006-06-30	122700
2006-09-30	141344
2006-12-31	130119
2007-03-31	151714
2007-06-30	110801
2007-09-30	120037
2007-12-31	93753
2008-03-31	114961
2008-06-30	115410
2008-09-30	128906
2008-12-31	102732
2009-03-31	142056
2009-06-30	162974
2009-09-30	170650
2009-12-31	161971
2010-03-31	191796
2010-06-30	229614
2010-09-30	212570
2010-12-31	195896
2011-03-31	218192
2011-06-30	220067
2011-09-30	280473
2011-12-31	317455
2012-03-31	427166
2012-06-30	404842
2012-09-30	366750
2012-12-31	378839
2013-03-31	283133
2013-06-30	268909
2013-09-30	244356
2013-12-31	233088
2014-03-31	237604
2014-06-30	187780
2014-09-30	186493
2014-12-31	193644
2015-03-31	193565
2015-06-30	203392
2015-09-30	219235
2015-12-31	232630
2016-03-31	229710
2016-06-30	261912
2016-09-30	264950
2016-12-31	242348
2017-03-31	268972
2017-06-30	294791
2017-09-30	303905
2017-12-31	322770
2018-03-31	298440
2018-06-30	309148
2018-09-30	312492
2018-12-31	273163
2019-03-31	267567
2019-06-30	263689
2019-09-30	237904
2019-12-31	255546
2020-03-31	258869
2020-06-30	306827
2020-09-30	326226
2020-12-31	367288
2021-03-31	387193
2021-06-30	378808
2021-09-30	335042
2021-12-31	355193
2022-03-31	365575
2022-06-30	365656
2022-09-30	318182
2022-12-31	341117
2023-03-31	333845
2023-06-30	345712
2023-09-30	348794