Quarter	US dollars
2004-12-31	52
2005-03-31	60
2005-06-30	41
2005-09-30	42
2005-12-31	36
2006-03-31	33
2006-06-30	35
2006-09-30	35
2006-12-31	22
2007-03-31	27
2007-06-30	54
2007-09-30	26
2007-12-31	38
2008-03-31	42
2008-06-30	46
2008-09-30	46
2008-12-31	37
2009-03-31	49
2009-06-30	44
2009-09-30	40
2009-12-31	37
2010-03-31	33
2010-06-30	33
2010-09-30	30
2010-12-31	39
2011-03-31	29
2011-06-30	29
2011-09-30	23
2011-12-31	20
2012-03-31	18
2012-06-30	135
2012-09-30	137
2012-12-31	154
2013-03-31	124
2013-06-30	123
2013-09-30	81
2013-12-31	20
2014-03-31	32
2014-06-30	74
2014-09-30	44
2014-12-31	37
2015-03-31	7
2015-06-30	11
2015-09-30	6
2015-12-31	3
2016-03-31	3
2016-06-30	31
2016-09-30	30
2016-12-31	25
2017-03-31	26
2017-06-30	29
2017-09-30	31
2017-12-31	43
2018-03-31	45
2018-06-30	44
2018-09-30	44
2018-12-31	46
2019-03-31	47
2019-06-30	43
2019-09-30	41
2019-12-31	40
2020-03-31	40
2020-06-30	40
2020-09-30	41
2020-12-31	42
2021-03-31	41
2021-06-30	39
2021-09-30	31
2021-12-31	13
2022-03-31	32
2022-06-30	26
2022-09-30	23
2022-12-31	17
2023-03-31	17
2023-06-30	18
2023-09-30	17