Quarter	US dollars
2004-12-31	712
2005-03-31	698
2005-06-30	624
2005-09-30	635
2005-12-31	570
2006-03-31	753
2006-06-30	777
2006-09-30	779
2006-12-31	808
2007-03-31	806
2007-06-30	885
2007-09-30	829
2007-12-31	812
2008-03-31	918
2008-06-30	806
2008-09-30	800
2008-12-31	1222
2009-03-31	1221
2009-06-30	1312
2009-09-30	1270
2009-12-31	1481
2010-03-31	1288
2010-06-30	989
2010-09-30	1078
2010-12-31	1083
2011-03-31	1023
2011-06-30	1317
2011-09-30	1539
2011-12-31	1441
2012-03-31	1512
2012-06-30	1576
2012-09-30	1899
2012-12-31	1717
2013-03-31	1603
2013-06-30	1614
2013-09-30	1508
2013-12-31	1456
2014-03-31	1486
2014-06-30	1200
2014-09-30	1190
2014-12-31	999
2015-03-31	1094
2015-06-30	1206
2015-09-30	1103
2015-12-31	1043
2016-03-31	1262
2016-06-30	1303
2016-09-30	1264
2016-12-31	1097
2017-03-31	1073
2017-06-30	1268
2017-09-30	1317
2017-12-31	1225
2018-03-31	1747
2018-06-30	1414
2018-09-30	1551
2018-12-31	1548
2019-03-31	1418
2019-06-30	1252
2019-09-30	1385
2019-12-31	1544
2020-03-31	1673
2020-06-30	1792
2020-09-30	1709
2020-12-31	1392
2021-03-31	1359
2021-06-30	1369
2021-09-30	921
2021-12-31	1248
2022-03-31	1144
2022-06-30	1001
2022-09-30	857
2022-12-31	769
2023-03-31	971
2023-06-30	1058
2023-09-30	1093