Quarter	US dollars
2004-12-31	234
2005-03-31	202
2005-06-30	183
2005-09-30	262
2005-12-31	184
2006-03-31	163
2006-06-30	172
2006-09-30	202
2006-12-31	204
2007-03-31	282
2007-06-30	124
2007-09-30	130
2007-12-31	135
2008-03-31	34
2008-06-30	36
2008-09-30	30
2008-12-31	14
2009-03-31	3
2009-06-30	5
2009-09-30	3
2009-12-31	3
2010-03-31	5
2010-06-30	3
2010-09-30	6
2010-12-31	9
2011-03-31	30
2011-06-30	32
2011-09-30	106
2011-12-31	240
2012-03-31	764
2012-06-30	706
2012-09-30	589
2012-12-31	548
2013-03-31	562
2013-06-30	543
2013-09-30	570
2013-12-31	607
2014-03-31	587
2014-06-30	624
2014-09-30	572
2014-12-31	1302
2015-03-31	1154
2015-06-30	1158
2015-09-30	1128
2015-12-31	1017
2016-03-31	1222
2016-06-30	1174
2016-09-30	1083
2016-12-31	939
2017-03-31	834
2017-06-30	855
2017-09-30	783
2017-12-31	785
2018-03-31	818
2018-06-30	510
2018-09-30	489
2018-12-31	329
2019-03-31	414
2019-06-30	395
2019-09-30	322
2019-12-31	247
2020-03-31	309
2020-06-30	330
2020-09-30	302
2020-12-31	330
2021-03-31	359
2021-06-30	1748
2021-09-30	469
2021-12-31	1012
2022-03-31	548
2022-06-30	197
2022-09-30	706
2022-12-31	276
2023-03-31	260
2023-06-30	275
2023-09-30	275