Quarter	US dollars
2004-12-31	543
2005-03-31	558
2005-06-30	529
2005-09-30	493
2005-12-31	336
2006-03-31	389
2006-06-30	414
2006-09-30	275
2006-12-31	233
2007-03-31	212
2007-06-30	128
2007-09-30	102
2007-12-31	113
2008-03-31	149
2008-06-30	76
2008-09-30	82
2008-12-31	89
2009-03-31	85
2009-06-30	79
2009-09-30	77
2009-12-31	71
2010-03-31	61
2010-06-30	73
2010-09-30	88
2010-12-31	70
2011-03-31	67
2011-06-30	71
2011-09-30	53
2011-12-31	49
2012-03-31	43
2012-06-30	38
2012-09-30	34
2012-12-31	23
2013-03-31	26
2013-06-30	21
2013-09-30	15
2013-12-31	12
2014-03-31	2
2014-06-30	2
2014-09-30	2
2014-12-31	0
2015-03-31	0
2015-06-30	0
2015-09-30	0
2015-12-31	0
2016-03-31	0
2016-06-30	0
2016-09-30	0
2016-12-31	0
2017-03-31	0
2017-06-30	0
2017-09-30	0
2017-12-31	0
2018-03-31	0
2018-06-30	0
2018-09-30	0
2018-12-31	0
2019-03-31	0
2019-06-30	0
2019-09-30	0
2019-12-31	0
2020-03-31	0
2020-06-30	0
2020-09-30	0
2020-12-31	0
2021-03-31	0
2021-06-30	0
2021-09-30	0
2021-12-31	0
2022-03-31	0
2022-06-30	0
2022-09-30	0
2022-12-31	0
2023-03-31	0
2023-06-30	0
2023-09-30	0