Quarter	US dollars
2004-12-31	23
2005-03-31	23
2005-06-30	45
2005-09-30	25
2005-12-31	22
2006-03-31	21
2006-06-30	26
2006-09-30	32
2006-12-31	33
2007-03-31	35
2007-06-30	40
2007-09-30	20
2007-12-31	48
2008-03-31	74
2008-06-30	40
2008-09-30	39
2008-12-31	46
2009-03-31	36
2009-06-30	41
2009-09-30	59
2009-12-31	81
2010-03-31	100
2010-06-30	63
2010-09-30	90
2010-12-31	89
2011-03-31	59
2011-06-30	79
2011-09-30	70
2011-12-31	57
2012-03-31	59
2012-06-30	107
2012-09-30	161
2012-12-31	199
2013-03-31	152
2013-06-30	177
2013-09-30	207
2013-12-31	23
2014-03-31	22
2014-06-30	24
2014-09-30	99
2014-12-31	50
2015-03-31	39
2015-06-30	41
2015-09-30	18
2015-12-31	12
2016-03-31	17
2016-06-30	16
2016-09-30	25
2016-12-31	449
2017-03-31	108
2017-06-30	105
2017-09-30	102
2017-12-31	111
2018-03-31	143
2018-06-30	124
2018-09-30	93
2018-12-31	84
2019-03-31	94
2019-06-30	64
2019-09-30	65
2019-12-31	85
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	39
2022-03-31	36
2022-06-30	33
2022-09-30	44
2022-12-31	48
2023-03-31	24
2023-06-30	53
2023-09-30	96