Quarter	US dollars
2004-12-31	778
2005-03-31	766
2005-06-30	687
2005-09-30	738
2005-12-31	683
2006-03-31	1081
2006-06-30	901
2006-09-30	966
2006-12-31	1182
2007-03-31	1196
2007-06-30	957
2007-09-30	998
2007-12-31	1015
2008-03-31	2268
2008-06-30	2474
2008-09-30	2490
2008-12-31	2365
2009-03-31	1993
2009-06-30	2287
2009-09-30	2402
2009-12-31	2337
2010-03-31	2524
2010-06-30	2548
2010-09-30	2708
2010-12-31	2713
2011-03-31	2849
2011-06-30	2746
2011-09-30	2131
2011-12-31	1840
2012-03-31	823
2012-06-30	825
2012-09-30	715
2012-12-31	795
2013-03-31	723
2013-06-30	774
2013-09-30	828
2013-12-31	955
2014-03-31	1866
2014-06-30	1999
2014-09-30	1902
2014-12-31	2085
2015-03-31	1981
2015-06-30	2078
2015-09-30	1937
2015-12-31	1921
2016-03-31	1971
2016-06-30	2084
2016-09-30	2136
2016-12-31	2032
2017-03-31	1995
2017-06-30	1139
2017-09-30	1123
2017-12-31	1002
2018-03-31	1001
2018-06-30	968
2018-09-30	926
2018-12-31	1011
2019-03-31	947
2019-06-30	762
2019-09-30	854
2019-12-31	786
2020-03-31	893
2020-06-30	833
2020-09-30	818
2020-12-31	932
2021-03-31	901
2021-06-30	1050
2021-09-30	814
2021-12-31	691
2022-03-31	705
2022-06-30	677
2022-09-30	640
2022-12-31	632
2023-03-31	620
2023-06-30	689
2023-09-30	644