Quarter	US dollars
2004-12-31	112996
2005-03-31	115919
2005-06-30	106858
2005-09-30	119484
2005-12-31	128498
2006-03-31	129085
2006-06-30	144412
2006-09-30	135818
2006-12-31	167942
2007-03-31	179839
2007-06-30	204647
2007-09-30	189988
2007-12-31	188025
2008-03-31	197313
2008-06-30	202073
2008-09-30	180942
2008-12-31	163311
2009-03-31	147164
2009-06-30	155774
2009-09-30	143667
2009-12-31	143569
2010-03-31	139793
2010-06-30	143043
2010-09-30	152680
2010-12-31	151221
2011-03-31	165838
2011-06-30	166769
2011-09-30	159669
2011-12-31	167656
2012-03-31	147169
2012-06-30	144164
2012-09-30	176533
2012-12-31	184889
2013-03-31	177234
2013-06-30	178440
2013-09-30	191994
2013-12-31	185661
2014-03-31	199374
2014-06-30	196166
2014-09-30	184715
2014-12-31	184497
2015-03-31	163099
2015-06-30	172295
2015-09-30	170940
2015-12-31	175887
2016-03-31	178724
2016-06-30	154628
2016-09-30	169586
2016-12-31	153753
2017-03-31	155727
2017-06-30	167971
2017-09-30	176435
2017-12-31	180122
2018-03-31	183376
2018-06-30	182803
2018-09-30	222726
2018-12-31	262555
2019-03-31	266776
2019-06-30	272610
2019-09-30	266979
2019-12-31	239129
2020-03-31	250744
2020-06-30	261453
2020-09-30	272786
2020-12-31	272433
2021-03-31	277769
2021-06-30	260296
2021-09-30	258208
2021-12-31	242210
2022-03-31	246665
2022-06-30	238730
2022-09-30	216657
2022-12-31	235604
2023-03-31	244171
2023-06-30	254061
2023-09-30	253743