Quarter	US dollars
2004-12-31	52
2005-03-31	91
2005-06-30	75
2005-09-30	80
2005-12-31	64
2006-03-31	33
2006-06-30	31
2006-09-30	24
2006-12-31	41
2007-03-31	41
2007-06-30	88
2007-09-30	39
2007-12-31	24
2008-03-31	40
2008-06-30	48
2008-09-30	45
2008-12-31	49
2009-03-31	43
2009-06-30	44
2009-09-30	10
2009-12-31	40
2010-03-31	42
2010-06-30	48
2010-09-30	46
2010-12-31	49
2011-03-31	58
2011-06-30	45
2011-09-30	128
2011-12-31	182
2012-03-31	129
2012-06-30	411
2012-09-30	234
2012-12-31	356
2013-03-31	205
2013-06-30	303
2013-09-30	223
2013-12-31	302
2014-03-31	252
2014-06-30	212
2014-09-30	298
2014-12-31	258
2015-03-31	111
2015-06-30	82
2015-09-30	82
2015-12-31	117
2016-03-31	148
2016-06-30	120
2016-09-30	121
2016-12-31	63
2017-03-31	79
2017-06-30	372
2017-09-30	447
2017-12-31	478
2018-03-31	494
2018-06-30	539
2018-09-30	481
2018-12-31	479
2019-03-31	426
2019-06-30	554
2019-09-30	530
2019-12-31	412
2020-03-31	260
2020-06-30	158
2020-09-30	127
2020-12-31	5
2021-03-31	21
2021-06-30	6
2021-09-30	7
2021-12-31	5
2022-03-31	4
2022-06-30	2
2022-09-30	3
2022-12-31	2
2023-03-31	2
2023-06-30	2
2023-09-30	2