Quarter	US dollars
2004-12-31	21
2005-03-31	11
2005-06-30	5
2005-09-30	7
2005-12-31	0
2006-03-31	0
2006-06-30	2
2006-09-30	6
2006-12-31	2
2007-03-31	8
2007-06-30	26
2007-09-30	16
2007-12-31	16
2008-03-31	32
2008-06-30	281
2008-09-30	273
2008-12-31	283
2009-03-31	295
2009-06-30	310
2009-09-30	342
2009-12-31	328
2010-03-31	431
2010-06-30	527
2010-09-30	184
2010-12-31	153
2011-03-31	495
2011-06-30	551
2011-09-30	681
2011-12-31	507
2012-03-31	495
2012-06-30	504
2012-09-30	457
2012-12-31	480
2013-03-31	76
2013-06-30	403
2013-09-30	387
2013-12-31	350
2014-03-31	183
2014-06-30	147
2014-09-30	190
2014-12-31	169
2015-03-31	178
2015-06-30	132
2015-09-30	211
2015-12-31	209
2016-03-31	139
2016-06-30	577
2016-09-30	75
2016-12-31	69
2017-03-31	68
2017-06-30	40
2017-09-30	16
2017-12-31	145
2018-03-31	132
2018-06-30	119
2018-09-30	106
2018-12-31	98
2019-03-31	33
2019-06-30	90
2019-09-30	91
2019-12-31	89
2020-03-31	135
2020-06-30	67
2020-09-30	85
2020-12-31	57
2021-03-31	52
2021-06-30	53
2021-09-30	47
2021-12-31	65
2022-03-31	68
2022-06-30	112
2022-09-30	115
2022-12-31	86
2023-03-31	74
2023-06-30	49
2023-09-30	57