Quarter	US dollars
2004-12-31	84
2005-03-31	45
2005-06-30	43
2005-09-30	646
2005-12-31	541
2006-03-31	553
2006-06-30	516
2006-09-30	547
2006-12-31	579
2007-03-31	594
2007-06-30	520
2007-09-30	668
2007-12-31	695
2008-03-31	1095
2008-06-30	1359
2008-09-30	1345
2008-12-31	1193
2009-03-31	1157
2009-06-30	1209
2009-09-30	1207
2009-12-31	1058
2010-03-31	1210
2010-06-30	1079
2010-09-30	1167
2010-12-31	1180
2011-03-31	1007
2011-06-30	1415
2011-09-30	1664
2011-12-31	1359
2012-03-31	1413
2012-06-30	1357
2012-09-30	1092
2012-12-31	1373
2013-03-31	1219
2013-06-30	1318
2013-09-30	1381
2013-12-31	1347
2014-03-31	1614
2014-06-30	1660
2014-09-30	1636
2014-12-31	1548
2015-03-31	1514
2015-06-30	1159
2015-09-30	1104
2015-12-31	1092
2016-03-31	1024
2016-06-30	411
2016-09-30	372
2016-12-31	372
2017-03-31	504
2017-06-30	726
2017-09-30	743
2017-12-31	746
2018-03-31	730
2018-06-30	689
2018-09-30	635
2018-12-31	628
2019-03-31	536
2019-06-30	570
2019-09-30	590
2019-12-31	614
2020-03-31	613
2020-06-30	623
2020-09-30	562
2020-12-31	532
2021-03-31	659
2021-06-30	727
2021-09-30	1026
2021-12-31	701
2022-03-31	638
2022-06-30	665
2022-09-30	686
2022-12-31	569
2023-03-31	596
2023-06-30	455
2023-09-30	431