Quarter	US dollars
2004-12-31	292
2005-03-31	310
2005-06-30	351
2005-09-30	380
2005-12-31	434
2006-03-31	536
2006-06-30	573
2006-09-30	648
2006-12-31	697
2007-03-31	879
2007-06-30	997
2007-09-30	903
2007-12-31	970
2008-03-31	1024
2008-06-30	1962
2008-09-30	1689
2008-12-31	1593
2009-03-31	1502
2009-06-30	1606
2009-09-30	1850
2009-12-31	1497
2010-03-31	1456
2010-06-30	2778
2010-09-30	2767
2010-12-31	2419
2011-03-31	2966
2011-06-30	3319
2011-09-30	2592
2011-12-31	2328
2012-03-31	2873
2012-06-30	2689
2012-09-30	2398
2012-12-31	2616
2013-03-31	2476
2013-06-30	2631
2013-09-30	2743
2013-12-31	2646
2014-03-31	2316
2014-06-30	3445
2014-09-30	3096
2014-12-31	2755
2015-03-31	2511
2015-06-30	2587
2015-09-30	2111
2015-12-31	1560
2016-03-31	2029
2016-06-30	1942
2016-09-30	1551
2016-12-31	1311
2017-03-31	1438
2017-06-30	1589
2017-09-30	1923
2017-12-31	1594
2018-03-31	1921
2018-06-30	1867
2018-09-30	1967
2018-12-31	1677
2019-03-31	1672
2019-06-30	1945
2019-09-30	1809
2019-12-31	1890
2020-03-31	1888
2020-06-30	1691
2020-09-30	1871
2020-12-31	1705
2021-03-31	1788
2021-06-30	1722
2021-09-30	1758
2021-12-31	1592
2022-03-31	1537
2022-06-30	1390
2022-09-30	1366
2022-12-31	1261
2023-03-31	1258
2023-06-30	1279
2023-09-30	1219