Quarter	US dollars
2004-12-31	12
2005-03-31	11
2005-06-30	5
2005-09-30	9
2005-12-31	3
2006-03-31	5
2006-06-30	7
2006-09-30	7
2006-12-31	10
2007-03-31	10
2007-06-30	10
2007-09-30	12
2008-12-31	7
2010-06-30	7
2014-09-30	24
2014-12-31	17
2015-03-31	33
2015-06-30	28
2015-09-30	26
2015-12-31	18
2016-03-31	12
2016-06-30	20
2016-09-30	6
2016-12-31	7
2017-03-31	6
2017-06-30	10
2017-09-30	8
2017-12-31	8
2018-03-31	11
2018-06-30	3
2018-09-30	13
2018-12-31	19
2019-03-31	13
2019-06-30	9
2019-09-30	33
2019-12-31	57
2020-03-31	68
2020-06-30	106
2020-09-30	137
2020-12-31	180
2021-03-31	208
2021-06-30	232
2021-09-30	240
2021-12-31	244
2022-03-31	245
2022-06-30	230
2022-09-30	91
2022-12-31	17
2023-03-31	15
2023-06-30	22
2023-09-30	9