Quarter	US dollars
2004-12-31	693
2005-03-31	849
2005-06-30	844
2005-09-30	796
2005-12-31	750
2006-03-31	737
2006-06-30	999
2006-09-30	1235
2006-12-31	840
2007-03-31	1034
2007-06-30	859
2007-09-30	2376
2007-12-31	2576
2008-03-31	2534
2008-06-30	2376
2008-09-30	1959
2008-12-31	2241
2009-03-31	2099
2009-06-30	2274
2009-09-30	2020
2009-12-31	2207
2010-03-31	1990
2010-06-30	2202
2010-09-30	879
2010-12-31	1122
2011-03-31	1154
2011-06-30	1013
2011-09-30	1031
2011-12-31	1317
2012-03-31	2450
2012-06-30	2646
2012-09-30	2201
2012-12-31	2118
2013-03-31	2475
2013-06-30	2747
2013-09-30	2831
2013-12-31	2744
2014-03-31	1179
2014-06-30	1188
2014-09-30	1579
2014-12-31	1767
2015-03-31	2444
2015-06-30	1938
2015-09-30	1492
2015-12-31	1827
2016-03-31	2520
2016-06-30	1761
2016-09-30	1894
2016-12-31	2077
2017-03-31	1696
2017-06-30	2732
2017-09-30	2910
2017-12-31	2817
2018-03-31	3201
2018-06-30	2697
2018-09-30	2997
2018-12-31	3303
2019-03-31	2993
2019-06-30	3103
2019-09-30	3856
2019-12-31	4012
2020-03-31	4025
2020-06-30	4682
2020-09-30	3334
2020-12-31	3538
2021-03-31	3692
2021-06-30	3916
2021-09-30	3949
2021-12-31	4141
2022-03-31	3897
2022-06-30	2963
2022-09-30	2890
2022-12-31	2992
2023-03-31	2554
2023-06-30	2281
2023-09-30	2836