Quarter	US dollars
2004-12-31	593
2005-03-31	645
2005-06-30	566
2005-09-30	271
2005-12-31	29
2006-03-31	31
2006-06-30	31
2006-09-30	34
2006-12-31	534
2007-03-31	80
2007-06-30	38
2007-09-30	57
2007-12-31	50
2008-03-31	129
2008-06-30	92
2008-09-30	57
2008-12-31	86
2009-03-31	169
2009-06-30	280
2009-09-30	88
2009-12-31	84
2010-03-31	86
2010-06-30	103
2010-09-30	222
2010-12-31	257
2011-03-31	141
2011-06-30	291
2011-09-30	327
2011-12-31	453
2012-03-31	459
2012-06-30	458
2012-09-30	468
2012-12-31	390
2013-03-31	323
2013-06-30	334
2013-09-30	421
2013-12-31	383
2014-03-31	355
2014-06-30	588
2014-09-30	517
2014-12-31	476
2015-03-31	395
2015-06-30	343
2015-09-30	283
2015-12-31	298
2016-03-31	270
2016-06-30	152
2016-09-30	52
2016-12-31	44
2017-03-31	8
2017-06-30	5
2017-09-30	8
2017-12-31	12
2018-03-31	15
2018-06-30	16
2018-09-30	12
2018-12-31	11
2019-03-31	13
2019-06-30	20
2019-09-30	47
2019-12-31	28
2020-03-31	30
2020-06-30	59
2020-09-30	131
2020-12-31	46
2021-03-31	159
2021-06-30	3
2021-09-30	3
2021-12-31	46
2022-03-31	45
2022-06-30	213
2022-09-30	428
2022-12-31	486
2023-03-31	523
2023-06-30	544
2023-09-30	36