Quarter	US dollars
2004-12-31	15
2005-03-31	21
2005-06-30	11
2005-09-30	4
2005-12-31	9
2006-03-31	5
2006-06-30	13
2006-09-30	6
2006-12-31	25
2007-03-31	31
2007-06-30	32
2007-09-30	26
2007-12-31	72
2008-03-31	97
2008-06-30	38
2008-09-30	43
2008-12-31	33
2009-03-31	27
2009-06-30	36
2009-09-30	46
2009-12-31	40
2010-03-31	36
2010-06-30	118
2010-09-30	139
2010-12-31	81
2011-03-31	120
2011-06-30	96
2011-09-30	97
2011-12-31	87
2012-03-31	43
2012-06-30	61
2012-09-30	111
2012-12-31	84
2013-03-31	80
2013-06-30	86
2013-09-30	66
2013-12-31	74
2014-03-31	67
2014-06-30	67
2014-09-30	68
2014-12-31	66
2015-03-31	74
2015-06-30	71
2015-09-30	67
2015-12-31	67
2016-03-31	49
2016-06-30	46
2016-09-30	47
2016-12-31	47
2017-03-31	49
2017-06-30	48
2017-09-30	51
2017-12-31	35
2018-03-31	32
2018-06-30	17
2018-09-30	-1
2018-12-31	6
2019-03-31	4
2019-06-30	3
2019-09-30	4
2019-12-31	3
2020-03-31	1
2020-06-30	1
2020-09-30	1
2020-12-31	3
2021-03-31	3
2021-06-30	3
2021-09-30	3
2021-12-31	3
2022-03-31	1
2022-06-30	8
2022-09-30	7
2022-12-31	2
2023-03-31	0
2023-06-30	2
2023-09-30	2