Quarter	US dollars
2004-12-31	23
2005-03-31	40
2005-06-30	27
2005-09-30	41
2005-12-31	51
2006-03-31	95
2006-06-30	207
2006-09-30	131
2006-12-31	137
2007-03-31	137
2007-06-30	215
2007-09-30	208
2007-12-31	251
2008-03-31	433
2008-06-30	440
2008-09-30	344
2008-12-31	579
2009-03-31	565
2009-06-30	361
2009-09-30	433
2009-12-31	430
2010-03-31	526
2010-06-30	967
2010-09-30	956
2010-12-31	697
2011-03-31	643
2011-06-30	812
2011-09-30	756
2011-12-31	595
2012-03-31	631
2012-06-30	557
2012-09-30	483
2012-12-31	406
2013-03-31	386
2013-06-30	453
2013-09-30	440
2013-12-31	521
2014-03-31	457
2014-06-30	456
2014-09-30	525
2014-12-31	479
2015-03-31	512
2015-06-30	330
2015-09-30	367
2015-12-31	290
2016-03-31	339
2016-06-30	408
2016-09-30	411
2016-12-31	236
2017-03-31	209
2017-06-30	191
2017-09-30	201
2017-12-31	196
2018-03-31	212
2018-06-30	119
2018-09-30	156
2018-12-31	186
2019-03-31	188
2019-06-30	191
2019-09-30	208
2019-12-31	169
2020-03-31	185
2020-06-30	175
2020-09-30	207
2020-12-31	169
2021-03-31	157
2021-06-30	48
2021-09-30	44
2021-12-31	35
2022-03-31	37
2022-06-30	45
2022-09-30	107
2022-12-31	78
2023-03-31	77
2023-06-30	83
2023-09-30	44