Quarter	US dollars
2004-12-31	13
2005-03-31	25
2005-06-30	9
2005-09-30	7
2005-12-31	5
2006-03-31	7
2006-06-30	11
2006-09-30	7
2006-12-31	6
2007-03-31	12
2007-06-30	14
2007-09-30	10
2007-12-31	12
2008-03-31	18
2008-06-30	18
2008-09-30	29
2008-12-31	10
2009-03-31	6
2009-06-30	8
2009-09-30	26
2009-12-31	24
2010-03-31	23
2010-06-30	114
2010-09-30	118
2010-12-31	59
2011-03-31	82
2011-06-30	59
2011-09-30	51
2011-12-31	43
2012-03-31	37
2012-06-30	47
2012-09-30	61
2012-12-31	24
2013-03-31	27
2013-06-30	42
2013-09-30	31
2013-12-31	40
2014-03-31	40
2014-06-30	39
2014-09-30	42
2014-12-31	39
2015-03-31	50
2015-06-30	49
2015-09-30	47
2015-12-31	67
2016-03-31	95
2016-06-30	43
2016-09-30	42
2016-12-31	75
2017-03-31	69
2017-06-30	64
2017-09-30	89
2017-12-31	31
2018-03-31	31
2018-06-30	25
2018-09-30	23
2018-12-31	5
2019-03-31	3
2019-06-30	1
2019-09-30	2
2019-12-31	1
2020-03-31	1
2020-06-30	0
2020-09-30	1
2020-12-31	3
2021-03-31	1
2021-06-30	1
2021-09-30	1
2021-12-31	1
2022-03-31	0
2022-06-30	7
2022-09-30	6
2022-12-31	1
2023-03-31	-1
2023-06-30	1
2023-09-30	1