Quarter	US dollars
2004-12-31	778
2005-03-31	768
2005-06-30	687
2005-09-30	738
2005-12-31	685
2006-03-31	1082
2006-06-30	903
2006-09-30	968
2006-12-31	1184
2007-03-31	1198
2007-06-30	959
2007-09-30	1000
2007-12-31	1017
2008-03-31	2270
2008-06-30	2476
2008-09-30	2490
2008-12-31	2366
2009-03-31	1995
2009-06-30	2289
2009-09-30	2404
2009-12-31	2338
2010-03-31	2328
2010-06-30	2348
2010-09-30	2507
2010-12-31	2513
2011-03-31	2653
2011-06-30	2571
2011-09-30	1963
2011-12-31	1637
2012-03-31	647
2012-06-30	654
2012-09-30	701
2012-12-31	757
2013-03-31	714
2013-06-30	764
2013-09-30	797
2013-12-31	897
2014-03-31	1806
2014-06-30	1935
2014-09-30	1864
2014-12-31	2001
2015-03-31	1884
2015-06-30	1921
2015-09-30	1784
2015-12-31	1710
2016-03-31	1756
2016-06-30	1881
2016-09-30	1927
2016-12-31	1799
2017-03-31	1761
2017-06-30	956
2017-09-30	928
2017-12-31	874
2018-03-31	846
2018-06-30	776
2018-09-30	729
2018-12-31	813
2019-03-31	757
2019-06-30	766
2019-09-30	856
2019-12-31	789
2020-03-31	897
2020-06-30	837
2020-09-30	822
2020-12-31	938
2021-03-31	904
2021-06-30	1053
2021-09-30	817
2021-12-31	694
2022-03-31	708
2022-06-30	679
2022-09-30	643
2022-12-31	636
2023-03-31	624
2023-06-30	692
2023-09-30	647