Quarter	US dollars
2004-12-31	459
2005-03-31	442
2005-06-30	500
2005-09-30	669
2005-12-31	570
2006-03-31	605
2006-06-30	610
2006-09-30	654
2006-12-31	746
2007-03-31	814
2007-06-30	919
2007-09-30	1011
2007-12-31	1029
2008-03-31	980
2008-06-30	1327
2008-09-30	1274
2008-12-31	1351
2009-03-31	1280
2009-06-30	1275
2009-09-30	1225
2009-12-31	328
2010-03-31	281
2010-06-30	373
2010-09-30	348
2010-12-31	438
2011-03-31	447
2011-06-30	424
2011-09-30	567
2011-12-31	778
2012-03-31	746
2012-06-30	866
2012-09-30	678
2012-12-31	983
2013-03-31	1181
2013-06-30	890
2013-09-30	815
2013-12-31	755
2014-03-31	840
2014-06-30	1014
2014-09-30	997
2014-12-31	819
2015-03-31	588
2015-06-30	478
2015-09-30	495
2015-12-31	701
2016-03-31	571
2016-06-30	637
2016-09-30	551
2016-12-31	704
2017-03-31	658
2017-06-30	855
2017-09-30	718
2017-12-31	627
2018-03-31	665
2018-06-30	656
2018-09-30	1112
2018-12-31	1573
2019-03-31	627
2019-06-30	923
2019-09-30	951
2019-12-31	519
2020-03-31	561
2020-06-30	886
2020-09-30	799
2020-12-31	1058
2021-03-31	1043
2021-06-30	1361
2021-09-30	813
2021-12-31	871
2022-03-31	869
2022-06-30	709
2022-09-30	1196
2022-12-31	862
2023-03-31	969
2023-06-30	676
2023-09-30	625