Quarter	US dollars
2004-12-31	157
2005-03-31	159
2005-06-30	172
2005-09-30	518
2005-12-31	395
2006-03-31	385
2006-06-30	353
2006-09-30	376
2006-12-31	387
2007-03-31	377
2007-06-30	363
2007-09-30	383
2007-12-31	386
2008-03-31	616
2008-06-30	953
2008-09-30	1091
2008-12-31	1032
2009-03-31	952
2009-06-30	879
2009-09-30	865
2009-12-31	732
2010-03-31	818
2010-06-30	877
2010-09-30	920
2010-12-31	917
2011-03-31	712
2011-06-30	1081
2011-09-30	1413
2011-12-31	1076
2012-03-31	1114
2012-06-30	1191
2012-09-30	1035
2012-12-31	1124
2013-03-31	1131
2013-06-30	1147
2013-09-30	1145
2013-12-31	1142
2014-03-31	1299
2014-06-30	1460
2014-09-30	1354
2014-12-31	1308
2015-03-31	1311
2015-06-30	1217
2015-09-30	1372
2015-12-31	1146
2016-03-31	1143
2016-06-30	846
2016-09-30	764
2016-12-31	821
2017-03-31	695
2017-06-30	601
2017-09-30	585
2017-12-31	626
2018-03-31	747
2018-06-30	742
2018-09-30	708
2018-12-31	618
2019-03-31	524
2019-06-30	547
2019-09-30	545
2019-12-31	568
2020-03-31	531
2020-06-30	517
2020-09-30	508
2020-12-31	475
2021-03-31	483
2021-06-30	514
2021-09-30	484
2021-12-31	468
2022-03-31	524
2022-06-30	589
2022-09-30	577
2022-12-31	570
2023-03-31	502
2023-06-30	418
2023-09-30	401