Quarter	US dollars
2004-12-31	298
2005-03-31	348
2005-06-30	229
2005-09-30	184
2005-12-31	237
2006-03-31	363
2006-06-30	486
2006-09-30	646
2006-12-31	1067
2007-03-31	1096
2007-06-30	650
2007-09-30	1094
2007-12-31	1416
2008-03-31	1196
2008-06-30	1395
2008-09-30	1059
2008-12-31	1084
2009-03-31	1402
2009-06-30	2027
2009-09-30	1892
2009-12-31	1040
2010-03-31	1847
2010-06-30	1869
2010-09-30	2429
2010-12-31	3017
2011-03-31	1768
2011-06-30	1758
2011-09-30	1429
2011-12-31	1545
2012-03-31	1416
2012-06-30	1805
2012-09-30	1893
2012-12-31	1811
2013-03-31	1357
2013-06-30	1450
2013-09-30	1488
2013-12-31	1805
2014-03-31	1856
2014-06-30	1599
2014-09-30	1218
2014-12-31	1132
2015-03-31	1241
2015-06-30	1169
2015-09-30	1250
2015-12-31	1034
2016-03-31	1245
2016-06-30	1074
2016-09-30	1016
2016-12-31	979
2017-03-31	959
2017-06-30	1098
2017-09-30	1084
2017-12-31	1524
2018-03-31	1271
2018-06-30	1427
2018-09-30	1575
2018-12-31	1442
2019-03-31	1425
2019-06-30	1403
2019-09-30	1408
2019-12-31	1490
2020-03-31	1426
2020-06-30	1636
2020-09-30	1466
2020-12-31	1624
2021-03-31	1596
2021-06-30	2164
2021-09-30	1335
2021-12-31	1322
2022-03-31	2102
2022-06-30	1231
2022-09-30	1168
2022-12-31	1087
2023-03-31	1061
2023-06-30	1076
2023-09-30	987