Quarter	US dollars
2004-12-31	814
2005-03-31	713
2005-06-30	796
2005-09-30	702
2005-12-31	639
2006-03-31	650
2006-06-30	952
2006-09-30	985
2006-12-31	892
2007-03-31	924
2007-06-30	1055
2007-09-30	1709
2007-12-31	1816
2008-03-31	1421
2008-06-30	1276
2008-09-30	1194
2008-12-31	1290
2009-03-31	1307
2009-06-30	1471
2009-09-30	1431
2009-12-31	1363
2010-03-31	1441
2010-06-30	1870
2010-09-30	1744
2010-12-31	2344
2011-03-31	2382
2011-06-30	2437
2011-09-30	2035
2011-12-31	2005
2012-03-31	2466
2012-06-30	2027
2012-09-30	2069
2012-12-31	1454
2013-03-31	1353
2013-06-30	1244
2013-09-30	1245
2013-12-31	1694
2014-03-31	1662
2014-06-30	1705
2014-09-30	730
2014-12-31	943
2015-03-31	640
2015-06-30	753
2015-09-30	656
2015-12-31	630
2016-03-31	613
2016-06-30	465
2016-09-30	660
2016-12-31	607
2017-03-31	605
2017-06-30	655
2017-09-30	641
2017-12-31	604
2018-03-31	595
2018-06-30	561
2018-09-30	545
2018-12-31	547
2019-03-31	523
2019-06-30	592
2019-09-30	547
2019-12-31	514
2020-03-31	438
2020-06-30	344
2020-09-30	361
2020-12-31	381
2021-03-31	430
2021-06-30	415
2021-09-30	410
2021-12-31	411
2022-03-31	399
2022-06-30	471
2022-09-30	479
2022-12-31	471
2023-03-31	480
2023-06-30	499
2023-09-30	439