Quarter	US dollars
2004-12-31	273
2005-03-31	187
2005-06-30	158
2005-09-30	338
2005-12-31	256
2006-03-31	245
2006-06-30	381
2006-09-30	570
2006-12-31	478
2007-03-31	561
2007-06-30	580
2007-09-30	956
2007-12-31	725
2008-03-31	805
2008-06-30	663
2008-09-30	734
2008-12-31	943
2009-03-31	933
2009-06-30	1108
2009-09-30	998
2009-12-31	819
2010-03-31	814
2010-06-30	1118
2010-09-30	1290
2010-12-31	1529
2011-03-31	2262
2011-06-30	2969
2011-09-30	2519
2011-12-31	2250
2012-03-31	1817
2012-06-30	2141
2012-09-30	2632
2012-12-31	2162
2013-03-31	2081
2013-06-30	2184
2013-09-30	1639
2013-12-31	1998
2014-03-31	1736
2014-06-30	1340
2014-09-30	1357
2014-12-31	1455
2015-03-31	1552
2015-06-30	1677
2015-09-30	1571
2015-12-31	1377
2016-03-31	1265
2016-06-30	1211
2016-09-30	1090
2016-12-31	1628
2017-03-31	1677
2017-06-30	1738
2017-09-30	1815
2017-12-31	1686
2018-03-31	2028
2018-06-30	2017
2018-09-30	1987
2018-12-31	2032
2019-03-31	1971
2019-06-30	2423
2019-09-30	4225
2019-12-31	3901
2020-03-31	3277
2020-06-30	2909
2020-09-30	1698
2020-12-31	1692
2021-03-31	1512
2021-06-30	1097
2021-09-30	1277
2021-12-31	1061
2022-03-31	1012
2022-06-30	990
2022-09-30	1019
2022-12-31	817
2023-03-31	1056
2023-06-30	1296
2023-09-30	1420