Quarter	US dollars
2004-12-31	6
2005-03-31	13
2005-06-30	5
2005-09-30	57
2005-12-31	0
2006-03-31	19
2006-06-30	15
2006-09-30	11
2006-12-31	22
2007-03-31	8
2007-06-30	6
2007-09-30	12
2007-12-31	30
2008-03-31	18
2008-06-30	68
2008-09-30	98
2008-12-31	85
2009-03-31	46
2009-06-30	380
2009-09-30	115
2009-12-31	40
2010-03-31	41
2010-06-30	139
2010-09-30	290
2010-12-31	169
2011-03-31	338
2011-06-30	85
2011-09-30	76
2011-12-31	99
2012-03-31	134
2012-06-30	88
2012-09-30	522
2012-12-31	493
2013-03-31	8
2013-06-30	2
2013-09-30	65
2013-12-31	187
2014-03-31	205
2014-06-30	46
2014-09-30	94
2014-12-31	34
2015-03-31	45
2015-06-30	109
2015-09-30	118
2015-12-31	129
2016-03-31	93
2016-06-30	251
2016-09-30	407
2016-12-31	417
2017-03-31	452
2017-06-30	292
2017-09-30	221
2017-12-31	227
2018-03-31	213
2018-06-30	164
2018-09-30	138
2018-12-31	176
2019-03-31	137
2019-06-30	331
2019-09-30	209
2019-12-31	194
2020-03-31	166
2020-06-30	119
2020-09-30	36
2020-12-31	23
2021-03-31	15
2021-06-30	80
2021-09-30	66
2021-12-31	67
2022-03-31	95
2022-06-30	48
2022-09-30	43
2022-12-31	61
2023-03-31	40
2023-06-30	19
2023-09-30	18