Quarter	US dollars
2004-12-31	728
2005-03-31	635
2005-06-30	717
2005-09-30	547
2005-12-31	496
2006-03-31	937
2006-06-30	536
2006-09-30	577
2006-12-31	538
2007-03-31	526
2007-06-30	867
2007-09-30	625
2007-12-31	611
2008-03-31	475
2008-06-30	412
2008-09-30	405
2008-12-31	338
2009-03-31	337
2009-06-30	303
2009-09-30	403
2009-12-31	176
2010-03-31	202
2010-06-30	208
2010-09-30	257
2010-12-31	271
2011-03-31	282
2011-06-30	364
2011-09-30	379
2011-12-31	365
2012-03-31	404
2012-06-30	414
2012-09-30	478
2012-12-31	437
2013-03-31	563
2013-06-30	429
2013-09-30	405
2013-12-31	468
2014-03-31	442
2014-06-30	427
2014-09-30	718
2014-12-31	448
2015-03-31	339
2015-06-30	412
2015-09-30	673
2015-12-31	739
2016-03-31	700
2016-06-30	735
2016-09-30	850
2016-12-31	779
2017-03-31	957
2017-06-30	561
2017-09-30	484
2017-12-31	693
2018-03-31	654
2018-06-30	614
2018-09-30	173
2018-12-31	52
2019-03-31	956
2019-06-30	961
2019-09-30	945
2019-12-31	960
2020-03-31	1006
2020-06-30	797
2020-09-30	741
2020-12-31	591
2021-03-31	593
2021-06-30	618
2021-09-30	694
2021-12-31	291
2022-03-31	179
2022-06-30	142
2022-09-30	107
2022-12-31	365
2023-03-31	361
2023-06-30	384
2023-09-30	302