Quarter	US dollars
2004-12-31	467
2005-03-31	972
2005-06-30	713
2005-09-30	595
2005-12-31	542
2006-03-31	739
2006-06-30	766
2006-09-30	106
2006-12-31	127
2007-03-31	127
2007-06-30	126
2007-09-30	51
2007-12-31	48
2008-03-31	4
2008-06-30	141
2008-09-30	289
2008-12-31	684
2009-03-31	618
2009-06-30	705
2009-09-30	787
2009-12-31	266
2010-03-31	282
2010-06-30	281
2010-09-30	295
2010-12-31	244
2011-03-31	19
2011-06-30	22
2011-09-30	0
2011-12-31	0
2012-03-31	0
2012-06-30	5
2012-09-30	10
2012-12-31	6
2013-03-31	0
2013-06-30	11
2013-09-30	3
2013-12-31	63
2014-03-31	10
2014-06-30	7
2014-09-30	3
2014-12-31	12
2015-03-31	3
2015-06-30	3
2015-09-30	3
2015-12-31	3
2016-03-31	3
2016-06-30	3
2016-09-30	3
2016-12-31	2
2017-03-31	3
2017-06-30	3
2017-09-30	3
2017-12-31	24399
2018-03-31	23201
2018-06-30	21329
2018-09-30	21338
2018-12-31	26045
2019-03-31	3
2019-06-30	3
2019-09-30	2