Quarter	US dollars
2004-12-31	52
2005-03-31	47
2005-06-30	32
2005-09-30	25
2005-12-31	29
2006-03-31	31
2006-06-30	28
2006-09-30	24
2006-12-31	22
2007-03-31	27
2007-06-30	14
2007-09-30	22
2007-12-31	28
2008-03-31	60
2008-06-30	38
2008-09-30	29
2008-12-31	70
2009-03-31	21
2009-06-30	28
2009-09-30	61
2009-12-31	63
2010-03-31	59
2010-06-30	55
2010-09-30	54
2010-12-31	58
2011-03-31	87
2011-06-30	151
2011-09-30	120
2011-12-31	127
2012-03-31	179
2012-06-30	166
2012-09-30	226
2012-12-31	320
2013-03-31	302
2013-06-30	315
2013-09-30	300
2013-12-31	169
2014-03-31	162
2014-06-30	142
2014-09-30	131
2014-12-31	125
2015-03-31	113
2015-06-30	149
2015-09-30	151
2015-12-31	145
2016-03-31	167
2016-06-30	74
2016-09-30	58
2016-12-31	52
2017-03-31	31
2017-06-30	31
2017-09-30	70
2017-12-31	108
2018-03-31	91
2018-06-30	73
2018-09-30	44
2018-12-31	59
2019-03-31	70
2019-06-30	43
2019-09-30	21
2019-12-31	41
2020-03-31	29
2020-06-30	5
2020-09-30	26
2020-12-31	51
2021-03-31	43
2021-06-30	41
2021-09-30	38
2021-12-31	26
2022-03-31	1
2022-06-30	1
2022-09-30	59
2022-12-31	75
2023-03-31	54
2023-06-30	59
2023-09-30	49