Quarter	US dollars
2004-12-31	76786
2005-03-31	88117
2005-06-30	83392
2005-09-30	92337
2005-12-31	82760
2006-03-31	83974
2006-06-30	86964
2006-09-30	93320
2006-12-31	101829
2007-03-31	76944
2007-06-30	91008
2007-09-30	114512
2007-12-31	142835
2008-03-31	144718
2008-06-30	155385
2008-09-30	157251
2008-12-31	112505
2009-03-31	111809
2009-06-30	113091
2009-09-30	120195
2009-12-31	123432
2010-03-31	121008
2010-06-30	116882
2010-09-30	125567
2010-12-31	135499
2011-03-31	142983
2011-06-30	140681
2011-09-30	139485
2011-12-31	123560
2012-03-31	126422
2012-06-30	134674
2012-09-30	147584
2012-12-31	130966
2013-03-31	135673
2013-06-30	135593
2013-09-30	142789
2013-12-31	140746
2014-03-31	137812
2014-06-30	152370
2014-09-30	148205
2014-12-31	146191
2015-03-31	141871
2015-06-30	133286
2015-09-30	136331
2015-12-31	122590
2016-03-31	126617
2016-06-30	139427
2016-09-30	132808
2016-12-31	135302
2017-03-31	148362
2017-06-30	164878
2017-09-30	163935
2017-12-31	165897
2018-03-31	153649
2018-06-30	152196
2018-09-30	156492
2018-12-31	146003
2019-03-31	153030
2019-06-30	161038
2019-09-30	160530
2019-12-31	167005
2020-03-31	189350
2020-06-30	171344
2020-09-30	162557
2020-12-31	164077
2021-03-31	177917
2021-06-30	181912
2021-09-30	179575
2021-12-31	193055
2022-03-31	197975
2022-06-30	193134
2022-09-30	178303
2022-12-31	176233
2023-03-31	175627
2023-06-30	182704
2023-09-30	185279