Quarter	US dollars
2004-12-31	21
2005-03-31	21
2005-06-30	25
2005-09-30	23
2005-12-31	7
2006-03-31	0
2006-06-30	0
2006-09-30	0
2006-12-31	0
2007-03-31	0
2007-06-30	0
2007-09-30	0
2007-12-31	0
2008-03-31	16
2008-06-30	8
2008-09-30	0
2008-12-31	211
2009-03-31	216
2009-06-30	402
2009-09-30	389
2009-12-31	392
2010-03-31	370
2010-06-30	440
2010-09-30	236
2010-12-31	1321
2011-03-31	1359
2011-06-30	1437
2011-09-30	1288
2011-12-31	1226
2012-03-31	1288
2012-06-30	1227
2012-09-30	1176
2012-12-31	475
2013-03-31	228
2013-06-30	228
2013-09-30	246
2013-12-31	248
2014-03-31	0
2014-06-30	82
2014-09-30	75
2014-12-31	69
2015-03-31	64
2015-06-30	64
2015-09-30	59
2015-12-31	0
2016-03-31	0
2016-06-30	0
2016-09-30	0
2016-12-31	2
2017-03-31	3
2017-06-30	18
2017-09-30	16
2017-12-31	19
2018-03-31	14
2018-06-30	9
2018-09-30	5
2018-12-31	5
2019-03-31	3
2019-06-30	4
2019-09-30	7
2019-12-31	7
2020-03-31	7
2020-06-30	6
2020-09-30	6
2020-12-31	7
2021-03-31	4
2021-06-30	7
2021-09-30	7
2021-12-31	7
2022-03-31	5
2022-06-30	6
2022-09-30	7
2022-12-31	8
2023-03-31	7
2023-06-30	6
2023-09-30	5