Quarter	US dollars
2004-12-31	129
2005-03-31	112
2005-06-30	106
2005-09-30	96
2005-12-31	76
2006-03-31	68
2006-06-30	0
2006-09-30	39
2006-12-31	0
2007-03-31	0
2007-06-30	253
2007-09-30	242
2007-12-31	434
2008-03-31	497
2008-06-30	507
2008-09-30	622
2008-12-31	683
2009-03-31	616
2009-06-30	594
2009-09-30	566
2009-12-31	559
2010-03-31	543
2010-06-30	513
2010-09-30	425
2010-12-31	410
2011-03-31	385
2011-06-30	1010
2011-09-30	975
2011-12-31	934
2012-03-31	901
2012-06-30	861
2012-09-30	807
2012-12-31	844
2013-03-31	806
2013-06-30	780
2013-09-30	748
2013-12-31	678
2014-03-31	642
2014-06-30	612
2014-09-30	574
2014-12-31	546
2015-03-31	344
2015-06-30	618
2015-09-30	889
2015-12-31	640
2016-03-31	348
2016-06-30	345
2016-09-30	361
2016-12-31	372
2017-03-31	383
2017-06-30	121
2017-09-30	110
2017-12-31	119
2018-03-31	116
2018-06-30	111
2018-09-30	106
2018-12-31	102
2019-03-31	132
2019-06-30	238
2019-09-30	266
2019-12-31	299
2020-03-31	530
2020-06-30	536
2020-09-30	258
2020-12-31	255
2021-03-31	233
2021-06-30	232
2021-09-30	285
2021-12-31	274
2022-03-31	290
2022-06-30	272
2022-09-30	343
2022-12-31	523
2023-03-31	429
2023-06-30	386
2023-09-30	464