Quarter	US dollars
2004-12-31	36
2005-03-31	0
2005-06-30	4
2005-09-30	67
2005-12-31	12
2006-03-31	12
2006-06-30	11
2006-09-30	17
2006-12-31	59
2007-03-31	39
2007-06-30	26
2007-09-30	57
2007-12-31	20
2008-03-31	34
2008-06-30	68
2008-09-30	89
2008-12-31	104
2009-03-31	100
2009-06-30	105
2009-09-30	82
2009-12-31	86
2010-03-31	61
2010-06-30	221
2010-09-30	293
2010-12-31	651
2011-03-31	443
2011-06-30	477
2011-09-30	485
2011-12-31	485
2012-03-31	5956
2012-06-30	5807
2012-09-30	5265
2012-12-31	5308
2013-03-31	5993
2013-06-30	5609
2013-09-30	5044
2013-12-31	2917
2014-03-31	2483
2014-06-30	2375
2014-09-30	2140
2014-12-31	1868
2015-03-31	1789
2015-06-30	1946
2015-09-30	1845
2015-12-31	1689
2016-03-31	1642
2016-06-30	1652
2016-09-30	1589
2016-12-31	1614
2017-03-31	1360
2017-06-30	1252
2017-09-30	1127
2017-12-31	867
2018-03-31	790
2018-06-30	681
2018-09-30	1051
2018-12-31	321
2019-03-31	195
2019-06-30	256
2019-09-30	209
2019-12-31	194
2020-03-31	202
2020-06-30	192
2020-09-30	216
2020-12-31	248
2021-03-31	254
2021-06-30	254
2021-09-30	253
2021-12-31	240
2022-03-31	367
2022-06-30	323
2022-09-30	319
2022-12-31	323
2023-03-31	328
2023-06-30	339
2023-09-30	324