Quarter	US dollars
2004-12-31	61
2005-03-31	151
2005-06-30	335
2005-09-30	304
2005-12-31	388
2006-03-31	411
2006-06-30	559
2006-09-30	424
2006-12-31	493
2007-03-31	490
2007-06-30	546
2007-09-30	526
2007-12-31	518
2008-03-31	501
2008-06-30	547
2008-09-30	180
2008-12-31	584
2009-03-31	727
2009-06-30	1026
2009-09-30	880
2009-12-31	628
2010-03-31	760
2010-06-30	1010
2010-09-30	3019
2010-12-31	1033
2011-03-31	1077
2011-06-30	660
2011-09-30	407
2011-12-31	366
2012-03-31	639
2012-06-30	397
2012-09-30	793
2012-12-31	774
2013-03-31	761
2013-06-30	588
2013-09-30	432
2013-12-31	569
2014-03-31	595
2014-06-30	742
2014-09-30	799
2014-12-31	665
2015-03-31	627
2015-06-30	530
2015-09-30	547
2015-12-31	517
2016-03-31	621
2016-06-30	442
2016-09-30	456
2016-12-31	405
2017-03-31	425
2017-06-30	409
2017-09-30	360
2017-12-31	315
2018-03-31	320
2018-06-30	359
2018-09-30	347
2018-12-31	230
2019-03-31	420
2019-06-30	262
2019-09-30	336
2019-12-31	266
2020-03-31	272
2020-06-30	235
2020-09-30	111
2020-12-31	109
2021-03-31	124
2021-06-30	112
2021-09-30	77
2021-12-31	94
2022-03-31	70
2022-06-30	86
2022-09-30	87
2022-12-31	52
2023-03-31	27
2023-06-30	38
2023-09-30	40