Quarter	US dollars
2004-12-31	286
2005-03-31	227
2005-06-30	271
2005-09-30	384
2005-12-31	273
2006-03-31	241
2006-06-30	224
2006-09-30	291
2006-12-31	284
2007-03-31	363
2007-06-30	329
2007-09-30	540
2007-12-31	635
2008-03-31	640
2008-06-30	794
2008-09-30	809
2008-12-31	737
2009-03-31	449
2009-06-30	410
2009-09-30	438
2009-12-31	342
2010-03-31	413
2010-06-30	368
2010-09-30	441
2010-12-31	509
2011-03-31	442
2011-06-30	551
2011-09-30	562
2011-12-31	543
2012-03-31	665
2012-06-30	762
2012-09-30	686
2013-06-30	711
2013-09-30	609
2014-03-31	689
2014-06-30	749
2014-09-30	817
2014-12-31	784
2015-03-31	690
2015-06-30	620
2015-09-30	650
2015-12-31	579
2016-03-31	447
2016-06-30	434
2016-09-30	481
2016-12-31	434
2017-03-31	441
2017-06-30	896
2017-09-30	741
2017-12-31	847
2018-03-31	766
2018-06-30	774
2018-09-30	677
2018-12-31	833
2019-03-31	756
2019-06-30	692
2019-09-30	583
2019-12-31	609
2020-03-31	561
2020-06-30	636
2020-09-30	614
2020-12-31	573
2021-03-31	653
2021-06-30	661
2021-09-30	659
2021-12-31	621
2022-03-31	623
2022-06-30	655
2022-09-30	547
2022-12-31	599
2023-03-31	434
2023-06-30	422
2023-09-30	384