Quarter	US dollars
2004-12-31	21
2005-03-31	23
2005-06-30	45
2005-09-30	23
2005-12-31	21
2006-03-31	19
2006-06-30	22
2006-09-30	30
2006-12-31	31
2007-03-31	33
2007-06-30	40
2007-09-30	18
2007-12-31	46
2008-03-31	72
2008-06-30	38
2008-09-30	39
2008-12-31	46
2009-03-31	36
2009-06-30	41
2009-09-30	59
2009-12-31	78
2010-03-31	103
2010-06-30	63
2010-09-30	90
2010-12-31	88
2011-03-31	59
2011-06-30	74
2011-09-30	55
2011-12-31	48
2012-03-31	53
2012-06-30	88
2012-09-30	139
2012-12-31	175
2013-03-31	137
2013-06-30	149
2013-09-30	186
2013-12-31	8
2014-03-31	12
2014-06-30	15
2014-09-30	91
2014-12-31	45
2015-03-31	34
2015-06-30	39
2015-09-30	15
2015-12-31	9
2016-03-31	17
2016-06-30	20
2016-09-30	23
2016-12-31	466
2017-03-31	105
2017-06-30	107
2017-09-30	98
2017-12-31	104
2018-03-31	138
2018-06-30	121
2018-09-30	91
2018-12-31	82
2019-03-31	86
2019-06-30	61
2019-09-30	63
2019-12-31	82
2020-03-31	48
2020-06-30	79
2020-09-30	100
2020-12-31	134
2021-03-31	156
2021-06-30	17
2021-09-30	31
2021-12-31	38
2022-03-31	34
2022-06-30	32
2022-09-30	43
2022-12-31	47
2023-03-31	22
2023-06-30	52
2023-09-30	94