Quarter	US dollars
2004-12-31	13
2006-12-31	12
2007-03-31	16
2008-06-30	20
2008-12-31	46
2009-09-30	13
2009-12-31	32
2010-03-31	20
2010-06-30	18
2010-09-30	38
2010-12-31	9
2012-06-30	16
2012-12-31	36
2013-03-31	27
2013-06-30	47
2015-03-31	34
2015-06-30	17
2015-09-30	17
2015-12-31	16
2016-03-31	22
2016-06-30	17
2016-09-30	14
2016-12-31	5
2017-03-31	29
2017-06-30	8
2017-09-30	16
2017-12-31	12
2018-03-31	10
2018-06-30	11
2018-09-30	8
2018-12-31	15
2019-03-31	5
2019-06-30	6
2019-09-30	12
2019-12-31	7
2020-03-31	7
2020-06-30	10
2020-09-30	12
2020-12-31	4
2021-03-31	4
2021-06-30	4
2021-09-30	11
2021-12-31	8
2022-03-31	7
2022-06-30	25
2022-09-30	8
2022-12-31	5
2023-03-31	15
2023-06-30	19
2023-09-30	23