Quarter	US dollars
2004-12-31	384
2005-03-31	295
2005-06-30	344
2005-09-30	184
2005-12-31	187
2006-03-31	369
2006-06-30	111
2006-09-30	383
2006-12-31	924
2007-03-31	308
2007-06-30	18
2007-09-30	137
2007-12-31	46
2008-03-31	54
2008-06-30	318
2008-09-30	371
2008-12-31	1870
2009-03-31	1850
2009-06-30	1739
2009-09-30	1809
2009-12-31	1859
2010-03-31	1585
2010-06-30	1777
2010-09-30	2239
2010-12-31	1598
2011-03-31	1964
2011-06-30	1925
2011-09-30	3131
2011-12-31	2335
2012-03-31	2255
2012-06-30	6383
2012-09-30	7506
2012-12-31	3441
2013-03-31	2651
2013-06-30	2240
2013-09-30	3616
2013-12-31	2449
2014-03-31	1305
2014-06-30	494
2014-09-30	689
2014-12-31	741
2015-03-31	2193
2015-06-30	2605
2015-09-30	2667
2015-12-31	2744
2016-03-31	3317
2016-06-30	3230
2016-09-30	2863
2016-12-31	1890
2017-03-31	1797
2017-06-30	1315
2017-09-30	1021
2017-12-31	1051
2018-03-31	1065
2018-06-30	1083
2018-09-30	1051
2018-12-31	1128
2019-03-31	1222
2019-06-30	1527
2019-09-30	978
2019-12-31	1005
2020-03-31	1057
2020-06-30	1046
2020-09-30	1215
2020-12-31	1114
2021-03-31	1095
2021-06-30	1094
2021-09-30	1265
2021-12-31	1485
2022-03-31	1718
2022-06-30	1572
2022-09-30	1443
2022-12-31	1360
2023-03-31	1394
2023-06-30	1303
2023-09-30	1145