Quarter	US dollars
2004-12-31	223
2005-03-31	223
2005-06-30	278
2005-09-30	324
2005-12-31	407
2006-03-31	494
2006-06-30	568
2006-09-30	626
2006-12-31	665
2007-03-31	686
2007-06-30	644
2007-09-30	797
2007-12-31	840
2008-03-31	958
2008-06-30	1009
2008-09-30	802
2008-12-31	996
2009-03-31	1002
2009-06-30	907
2009-09-30	1012
2009-12-31	1032
2010-03-31	998
2010-06-30	1130
2010-09-30	1531
2010-12-31	479
2011-03-31	196
2011-06-30	234
2011-09-30	414
2011-12-31	492
2012-03-31	516
2012-06-30	560
2012-09-30	531
2012-12-31	362
2013-03-31	273
2013-06-30	253
2013-09-30	604
2013-12-31	319
2014-03-31	295
2014-06-30	636
2014-09-30	728
2014-12-31	977
2015-03-31	1021
2015-06-30	735
2015-09-30	792
2015-12-31	735
2016-03-31	976
2016-06-30	1154
2016-09-30	1176
2016-12-31	867
2017-03-31	928
2017-06-30	831
2017-09-30	840
2017-12-31	904
2018-03-31	32
2018-06-30	32
2018-09-30	12
2018-12-31	10
2019-03-31	20
2019-06-30	18
2019-09-30	20
2019-12-31	13
2020-03-31	21
2020-06-30	25
2020-09-30	26
2020-12-31	29
2021-03-31	12
2021-06-30	14
2021-09-30	8
2021-12-31	4
2022-03-31	5
2022-06-30	13
2022-09-30	24
2022-12-31	16
2023-03-31	13
2023-06-30	11
2023-09-30	27