Quarter	US dollars
2004-12-31	19
2005-03-31	8
2005-06-30	9
2005-09-30	9
2005-12-31	7
2006-03-31	9
2006-06-30	9
2006-09-30	9
2006-12-31	12
2007-03-31	16
2007-06-30	40
2007-09-30	77
2007-12-31	90
2008-03-31	87
2008-06-30	84
2008-09-30	84
2008-12-31	135
2009-03-31	125
2009-06-30	224
2009-09-30	205
2009-12-31	60
2010-03-31	46
2010-06-30	43
2010-09-30	66
2010-12-31	34
2011-03-31	458
2011-06-30	883
2011-09-30	846
2011-12-31	1102
2012-03-31	1195
2012-06-30	1162
2012-09-30	1526
2012-12-31	1753
2013-03-31	1797
2013-06-30	1620
2013-09-30	1563
2013-12-31	1669
2014-03-31	1632
2014-06-30	1711
2014-09-30	1466
2014-12-31	1480
2015-03-31	1027
2015-06-30	936
2015-09-30	812
2015-12-31	892
2016-03-31	719
2016-06-30	696
2016-09-30	699
2016-12-31	661
2017-03-31	617
2017-06-30	711
2017-09-30	585
2017-12-31	580
2018-03-31	554
2018-06-30	500
2018-09-30	514
2018-12-31	516
2019-03-31	529
2019-06-30	582
2019-09-30	590
2019-12-31	680
2020-03-31	840
2020-06-30	817
2020-09-30	773
2020-12-31	568
2021-03-31	735
2021-06-30	814
2021-09-30	709
2021-12-31	694
2022-03-31	698
2022-06-30	658
2022-09-30	692
2022-12-31	694
2023-03-31	763
2023-06-30	836
2023-09-30	774