Quarter	US dollars
2004-12-31	163
2005-03-31	117
2005-06-30	106
2005-09-30	124
2005-12-31	187
2006-03-31	175
2006-06-30	194
2006-09-30	207
2006-12-31	135
2007-03-31	124
2007-06-30	110
2007-09-30	132
2007-12-31	137
2008-03-31	177
2008-06-30	149
2008-09-30	146
2008-12-31	164
2009-03-31	152
2009-06-30	143
2009-09-30	155
2009-12-31	147
2010-03-31	135
2010-06-30	239
2010-09-30	162
2010-12-31	147
2011-03-31	167
2011-06-30	157
2011-09-30	170
2011-12-31	456
2012-03-31	158
2012-06-30	212
2012-09-30	182
2012-12-31	163
2013-03-31	211
2013-06-30	205
2013-09-30	235
2013-12-31	241
2014-03-31	247
2014-06-30	279
2014-09-30	267
2014-12-31	429
2015-03-31	444
2015-06-30	359
2015-09-30	6
2015-12-31	12
2016-03-31	6
2016-06-30	34
2016-09-30	35
2016-12-31	34
2017-03-31	39
2017-06-30	36
2017-09-30	35
2017-12-31	31
2018-03-31	32
2018-06-30	32
2018-09-30	31
2018-12-31	31
2019-03-31	33
2019-06-30	29
2019-09-30	28
2019-12-31	0
2020-03-31	0
2020-06-30	0
2020-09-30	0
2020-12-31	0
2021-03-31	0
2021-06-30	0
2021-09-30	0
2021-12-31	0
2022-03-31	0
2022-06-30	0
2022-09-30	1
2022-12-31	0
2023-03-31	0
2023-06-30	0
2023-09-30	0