Quarter	US dollars
2004-12-31	70382
2005-03-31	64986
2005-06-30	63956
2005-09-30	63476
2005-12-31	65770
2006-03-31	74441
2006-06-30	75018
2006-09-30	78463
2006-12-31	83973
2007-03-31	83291
2007-06-30	91337
2007-09-30	109304
2007-12-31	116488
2008-03-31	119872
2008-06-30	121131
2008-09-30	106099
2008-12-31	108582
2009-03-31	104355
2009-06-30	108076
2009-09-30	101810
2009-12-31	97476
2010-03-31	89927
2010-06-30	100383
2010-09-30	123483
2010-12-31	127025
2011-03-31	125013
2011-06-30	123781
2011-09-30	106436
2011-12-31	108968
2012-03-31	113636
2012-06-30	117243
2012-09-30	120547
2012-12-31	124542
2013-03-31	138540
2013-06-30	141687
2013-09-30	155712
2013-12-31	161722
2014-03-31	160248
2014-06-30	158091
2014-09-30	159948
2014-12-31	166041
2015-03-31	155515
2015-06-30	148810
2015-09-30	132021
2015-12-31	125394
2016-03-31	127206
2016-06-30	131056
2016-09-30	119122
2016-12-31	128602
2017-03-31	131001
2017-06-30	124374
2017-09-30	132825
2017-12-31	135820
2018-03-31	125508
2018-06-30	122995
2018-09-30	121596
2018-12-31	123658
2019-03-31	125006
2019-06-30	116195
2019-09-30	116314
2019-12-31	115812
2020-03-31	116230
2020-06-30	112307
2020-09-30	106830
2020-12-31	100579
2021-03-31	110419
2021-06-30	113402
2021-09-30	121128
2021-12-31	116766
2022-03-31	118886
2022-06-30	103034
2022-09-30	100042
2022-12-31	96316
2023-03-31	100005
2023-06-30	100844
2023-09-30	95552