Quarter	US dollars
2004-12-31	463
2005-03-31	459
2005-06-30	428
2005-09-30	432
2005-12-31	601
2006-03-31	567
2006-06-30	559
2006-09-30	568
2006-12-31	654
2007-03-31	657
2007-06-30	791
2007-09-30	776
2007-12-31	768
2008-03-31	1650
2008-06-30	1514
2008-09-30	1474
2008-12-31	1530
2009-03-31	1413
2009-06-30	1513
2009-09-30	1572
2009-12-31	1813
2010-03-31	1967
2010-06-30	1825
2010-09-30	1891
2010-12-31	2153
2011-03-31	1892
2011-06-30	2007
2011-09-30	2092
2011-12-31	2460
2012-03-31	2100
2012-06-30	2116
2012-09-30	2539
2012-12-31	2519
2013-03-31	2658
2013-06-30	2666
2013-09-30	2593
2013-12-31	2501
2014-03-31	2511
2014-06-30	2088
2014-09-30	1923
2014-12-31	2049
2015-03-31	1989
2015-06-30	1837
2015-09-30	2083
2015-12-31	2079
2016-03-31	1994
2016-06-30	2106
2016-09-30	2049
2016-12-31	2419
2017-03-31	2390
2017-06-30	1455
2017-09-30	1240
2017-12-31	1200
2018-03-31	842
2018-06-30	850
2018-09-30	922
2018-12-31	903
2019-03-31	1104
2019-06-30	983
2019-09-30	935
2019-12-31	954
2020-03-31	912
2020-06-30	894
2020-09-30	817
2020-12-31	775
2021-03-31	701
2021-06-30	761
2021-09-30	833
2021-12-31	741
2022-03-31	637
2022-06-30	572
2022-09-30	536
2022-12-31	417
2023-03-31	394
2023-06-30	387
2023-09-30	406