Quarter	US dollars
2004-12-31	15
2005-03-31	13
2005-06-30	11
2005-09-30	11
2005-12-31	10
2006-03-31	9
2006-06-30	0
2006-09-30	0
2006-12-31	0
2007-03-31	0
2007-06-30	6
2007-09-30	37
2007-12-31	54
2008-03-31	72
2008-06-30	78
2008-09-30	141
2008-12-31	144
2009-03-31	43
2009-06-30	48
2009-09-30	53
2009-12-31	58
2010-03-31	55
2010-06-30	4
2010-09-30	5
2010-12-31	8
2011-03-31	6
2011-06-30	6
2011-09-30	0
2011-12-31	29
2012-03-31	16
2012-06-30	16
2012-09-30	16
2012-12-31	21
2013-03-31	20
2013-06-30	14
2013-09-30	113
2013-12-31	109
2014-03-31	75
2014-06-30	91
2014-09-30	62
2014-12-31	59
2015-03-31	50
2015-06-30	53
2015-09-30	41
2015-12-31	41
2016-03-31	0
2016-06-30	1
2016-09-30	0
2016-12-31	0
2017-03-31	0
2017-06-30	3
2017-09-30	4
2017-12-31	20
2018-03-31	20
2018-06-30	12
2018-09-30	27
2018-12-31	47
2019-03-31	79
2019-06-30	98
2019-09-30	71
2019-12-31	85
2020-03-31	83
2020-06-30	410
2020-09-30	483
2020-12-31	439
2021-03-31	469
2021-06-30	496
2021-09-30	431
2021-12-31	350
2022-03-31	284
2022-06-30	54
2022-09-30	44
2022-12-31	31
2023-03-31	61
2023-06-30	101
2023-09-30	126