Quarter	US dollars
1999-03-31	805
1999-06-30	829
1999-09-30	799
1999-12-31	809
2000-03-31	854
2000-06-30	812
2000-09-30	827
2000-12-31	834
2001-03-31	825
2001-06-30	814
2001-09-30	819
2001-12-31	827
2002-03-31	795
2002-06-30	808
2002-09-30	792
2002-12-31	793
2003-03-31	795
2003-06-30	794
2003-09-30	785
2003-12-31	820
2004-03-31	777
2004-06-30	737
2004-09-30	735
2004-12-31	748
2005-03-31	745
2005-06-30	705
2005-09-30	694
2005-12-31	671
2006-03-31	677
2006-06-30	928
2006-09-30	773
2006-12-31	776
2007-03-31	756
2007-06-30	771
2007-09-30	805
2007-12-31	870
2008-03-31	751
2008-06-30	695
2008-09-30	653
2008-12-31	602
2009-03-31	608
2009-06-30	395
2009-09-30	377
2009-12-31	654
2010-03-31	687
2010-06-30	637
2010-09-30	678
2010-12-31	594
2011-03-31	652
2011-06-30	645
2011-09-30	699
2011-12-31	738
2012-03-31	689
2012-06-30	732
2012-09-30	746
2012-12-31	726
2013-03-31	846
2013-06-30	793
2013-09-30	874
2013-12-31	852
2014-03-31	857
2014-06-30	796
2014-09-30	779
2014-12-31	790
2015-03-31	898
2015-06-30	892
2015-09-30	844
2015-12-31	809
2016-03-31	955
2016-06-30	869
2016-09-30	800
2016-12-31	808
2017-03-31	993
2017-06-30	866
2017-09-30	910
2017-12-31	951
2018-03-31	953
2018-06-30	888
2018-09-30	895
2018-12-31	944
2019-03-31	958
2019-06-30	993
2019-09-30	1078
2019-12-31	1185
2020-03-31	1211
2020-06-30	1084
2020-09-30	1172
2020-12-31	1062
2021-03-31	1112
2021-06-30	1054
2021-09-30	1153
2021-12-31	1024
2022-03-31	990
2022-06-30	940
2022-09-30	1044
2022-12-31	1005
2023-03-31	969
2023-06-30	948
2023-09-30	1098