Quarter	US dollars
2004-12-31	931
2005-03-31	1259
2005-06-30	1197
2005-09-30	1341
2005-12-31	1052
2006-03-31	1379
2006-06-30	1517
2006-09-30	1580
2006-12-31	1699
2007-03-31	1628
2007-06-30	1834
2007-09-30	1754
2007-12-31	2688
2008-03-31	2290
2008-06-30	2046
2008-09-30	1852
2008-12-31	1955
2009-03-31	1942
2009-06-30	1925
2009-09-30	2025
2009-12-31	2010
2010-03-31	2058
2010-06-30	2137
2010-09-30	2379
2010-12-31	2286
2011-03-31	2355
2011-06-30	1251
2011-09-30	2003
2011-12-31	1843
2012-03-31	1673
2012-06-30	1616
2012-09-30	1458
2012-12-31	1159
2013-03-31	1129
2013-06-30	1065
2013-09-30	1070
2013-12-31	1046
2014-03-31	949
2014-06-30	1002
2014-09-30	866
2014-12-31	857
2015-03-31	781
2015-06-30	61
2015-09-30	8
2015-12-31	6
2016-03-31	7
2016-06-30	7
2016-09-30	5
2016-12-31	6
2017-03-31	6
2017-06-30	6
2017-09-30	7
2017-12-31	7
2018-03-31	7
2018-06-30	5
2018-09-30	0
2018-12-31	14
2019-03-31	1
2019-06-30	13
2019-09-30	11
2019-12-31	0
2020-03-31	197
2020-06-30	19
2020-09-30	0
2020-12-31	53
2021-03-31	52
2021-06-30	50
2021-09-30	71
2021-12-31	57
2022-03-31	46
2022-06-30	44
2022-09-30	41
2022-12-31	40
2023-03-31	89
2023-06-30	89
2023-09-30	90