Quarter	US dollars
2004-12-31	230
2005-03-31	227
2005-06-30	208
2005-09-30	200
2005-12-31	194
2006-03-31	172
2006-06-30	178
2006-09-30	168
2006-12-31	354
2007-03-31	355
2007-06-30	321
2007-09-30	361
2007-12-31	54
2008-03-31	78
2008-06-30	68
2008-09-30	66
2008-12-31	63
2009-03-31	63
2009-06-30	58
2009-09-30	48
2009-12-31	63
2010-03-31	53
2010-06-30	136
2010-09-30	123
2010-12-31	59
2011-03-31	66
2011-06-30	69
2011-09-30	64
2011-12-31	54
2012-03-31	37
2012-06-30	56
2012-09-30	61
2012-12-31	44
2013-03-31	43
2013-06-30	39
2013-09-30	39
2013-12-31	23
2014-03-31	17
2014-06-30	17
2014-09-30	13
2014-12-31	23
2015-03-31	19
2015-06-30	16
2015-09-30	15
2015-12-31	16
2016-03-31	17
2016-06-30	15
2016-09-30	14
2016-12-31	14
2017-03-31	15
2017-06-30	13
2017-09-30	12
2017-12-31	11
2018-03-31	8
2018-06-30	7
2018-09-30	4
2018-12-31	3
2019-03-31	3
2019-06-30	3
2019-09-30	2
2019-12-31	1
2020-03-31	1
2020-06-30	1
2020-09-30	1
2020-12-31	1
2021-03-31	1
2021-06-30	1
2021-09-30	1
2021-12-31	115
2022-03-31	138
2022-06-30	130
2022-09-30	1
2022-12-31	1
2023-03-31	1
2023-06-30	1
2023-09-30	1