Quarter	US dollars
2004-12-31	283702
2005-03-31	306920
2005-06-30	273519
2005-09-30	281753
2005-12-31	261919
2006-03-31	311251
2006-06-30	309437
2006-09-30	331696
2006-12-31	350689
2007-03-31	376211
2007-06-30	375375
2007-09-30	443503
2007-12-31	404625
2008-03-31	444234
2008-06-30	373182
2008-09-30	361715
2008-12-31	266571
2009-03-31	262732
2009-06-30	282336
2009-09-30	258416
2009-12-31	248752
2010-03-31	238586
2010-06-30	241101
2010-09-30	270770
2010-12-31	275245
2011-03-31	277790
2011-06-30	291906
2011-09-30	254326
2011-12-31	237786
2012-03-31	251902
2012-06-30	239643
2012-09-30	251430
2012-12-31	255070
2013-03-31	268080
2013-06-30	261092
2013-09-30	279667
2013-12-31	283748
2014-03-31	283436
2014-06-30	289716
2014-09-30	288082
2014-12-31	288459
2015-03-31	292498
2015-06-30	287053
2015-09-30	273771
2015-12-31	252560
2016-03-31	261823
2016-06-30	264561
2016-09-30	244031
2016-12-31	253431
2017-03-31	262421
2017-06-30	262805
2017-09-30	268407
2017-12-31	266175
2018-03-31	273109
2018-06-30	267037
2018-09-30	263904
2018-12-31	257893
2019-03-31	260225
2019-06-30	239516
2019-09-30	245395
2019-12-31	246833
2020-03-31	260167
2020-06-30	245336
2020-09-30	237375
2020-12-31	222057
2021-03-31	243415
2021-06-30	252036
2021-09-30	263429
2021-12-31	262969
2022-03-31	265151
2022-06-30	232331
2022-09-30	232742
2022-12-31	225036
2023-03-31	233536
2023-06-30	253854
2023-09-30	244684