Quarter	US dollars
2004-12-31	65
2005-03-31	958
2005-06-30	651
2005-09-30	768
2005-12-31	9211
2006-03-31	663
2006-06-30	1235
2006-09-30	3778
2006-12-31	4662
2007-03-31	5476
2007-06-30	6208
2007-09-30	5564
2007-12-31	3313
2008-03-31	4482
2008-06-30	3958
2008-09-30	6132
2008-12-31	155
2009-03-31	24754
2009-06-30	7620
2009-09-30	333
2009-12-31	55
2010-03-31	1966
2010-06-30	63
2010-09-30	1431
2010-12-31	2685
2011-03-31	3844
2011-06-30	3076
2011-09-30	3985
2011-12-31	3687
2012-03-31	131
2012-06-30	618
2012-09-30	3165
2012-12-31	3568
2013-03-31	1681
2013-06-30	1034
2013-09-30	13289
2013-12-31	3486
2014-03-31	600
2014-06-30	2995
2014-09-30	710
2014-12-31	3147
2015-03-31	288
2015-06-30	187
2015-09-30	0
2015-12-31	0
2016-03-31	0
2016-06-30	0
2016-09-30	0
2016-12-31	0
2017-03-31	0
2017-06-30	0
2017-09-30	0
2017-12-31	0
2018-03-31	0
2018-06-30	0
2018-09-30	0
2018-12-31	0
2019-03-31	0
2019-06-30	0
2019-09-30	0