Quarter	US dollars
2004-12-31	84
2005-03-31	43
2005-06-30	4
2005-09-30	48
2005-12-31	15
2006-03-31	94
2006-06-30	70
2006-09-30	21
2006-12-31	61
2007-03-31	116
2007-06-30	104
2007-09-30	122
2007-12-31	108
2008-03-31	274
2008-06-30	107
2008-09-30	116
2008-12-31	246
2009-03-31	168
2009-06-30	278
2009-09-30	384
2009-12-31	95
2010-03-31	135
2010-06-30	272
2010-09-30	268
2010-12-31	308
2011-03-31	314
2011-06-30	303
2011-09-30	189
2011-12-31	107
2012-03-31	82
2012-06-30	91
2012-09-30	47
2012-12-31	26
2013-03-31	27
2013-06-30	23
2013-09-30	31
2013-12-31	56
2014-03-31	240
2014-06-30	207
2014-09-30	3
2014-12-31	78
2015-03-31	83
2015-06-30	2
2015-09-30	26
2015-12-31	27
2016-03-31	52
2016-06-30	9
2016-09-30	3
2016-12-31	2
2017-03-31	16
2017-06-30	4
2017-09-30	4
2017-12-31	5
2018-03-31	8
2018-06-30	21
2018-09-30	8
2018-12-31	8
2019-03-31	34
2019-06-30	17
2019-09-30	25
2019-12-31	29
2020-03-31	45
2020-06-30	54
2020-09-30	10
2020-12-31	4
2021-03-31	18
2021-06-30	47
2021-09-30	5
2021-12-31	5
2022-03-31	5
2022-06-30	6
2022-09-30	6
2022-12-31	5
2023-03-31	6
2023-06-30	6
2023-09-30	6