Quarter	US dollars
2004-12-31	21
2005-03-31	23
2005-06-30	18
2005-09-30	14
2005-12-31	15
2006-03-31	40
2006-06-30	35
2006-09-30	37
2006-12-31	18
2007-03-31	59
2007-06-30	62
2007-09-30	57
2007-12-31	28
2008-03-31	20
2008-06-30	24
2008-09-30	12
2008-12-31	6
2009-03-31	7
2009-06-30	12
2009-09-30	10
2009-12-31	10
2010-03-31	12
2010-06-30	24
2010-09-30	22
2010-12-31	36
2011-03-31	80
2011-06-30	26
2011-09-30	30
2011-12-31	39
2012-03-31	29
2012-06-30	36
2012-09-30	24
2012-12-31	23
2013-03-31	62
2013-06-30	73
2013-09-30	42
2013-12-31	13
2014-03-31	48
2014-06-30	39
2014-09-30	6
2014-12-31	28
2015-03-31	45
2015-06-30	58
2015-09-30	64
2015-12-31	31
2016-03-31	29
2016-06-30	28
2016-09-30	32
2016-12-31	22
2017-03-31	48
2017-06-30	22
2017-09-30	21
2017-12-31	23
2018-03-31	8
2018-06-30	8
2018-09-30	33
2018-12-31	10
2019-03-31	10
2019-06-30	10
2019-09-30	18
2019-12-31	18
2020-03-31	10
2020-06-30	9
2020-09-30	6
2020-12-31	57
2021-03-31	10
2021-06-30	17
2021-09-30	7
2021-12-31	7
2022-03-31	1
2022-06-30	2
2022-09-30	4
2022-12-31	1
2023-03-31	2
2023-06-30	1
2023-09-30	3