Quarter	US dollars
2004-12-31	346
2005-03-31	476
2005-06-30	493
2005-09-30	278
2005-12-31	239
2006-03-31	241
2006-06-30	290
2006-09-30	407
2006-12-31	325
2007-03-31	328
2007-06-30	341
2007-09-30	393
2007-12-31	390
2008-03-31	465
2008-06-30	623
2008-09-30	609
2008-12-31	561
2009-03-31	535
2009-06-30	613
2009-09-30	600
2009-12-31	557
2010-03-31	504
2010-06-30	211
2010-09-30	199
2010-12-31	202
2011-03-31	292
2011-06-30	331
2011-09-30	511
2011-12-31	459
2012-03-31	558
2012-06-30	543
2012-09-30	875
2012-12-31	957
2013-03-31	1213
2013-06-30	1371
2013-09-30	1258
2013-12-31	992
2014-03-31	974
2014-06-30	1016
2014-09-30	931
2014-12-31	991
2015-03-31	940
2015-06-30	933
2015-09-30	871
2015-12-31	932
2016-03-31	883
2016-06-30	843
2016-09-30	887
2016-12-31	929
2017-03-31	908
2017-06-30	895
2017-09-30	907
2017-12-31	893
2018-03-31	867
2018-06-30	817
2018-09-30	816
2018-12-31	808
2019-03-31	779
2019-06-30	774
2019-09-30	726
2019-12-31	754
2020-03-31	732
2020-06-30	753
2020-09-30	753
2020-12-31	762
2021-03-31	766
2021-06-30	848
2021-09-30	752
2021-12-31	840
2022-03-31	884
2022-06-30	801
2022-09-30	844
2022-12-31	971
2023-03-31	975
2023-06-30	1039
2023-09-30	1072