Quarter	US dollars
2004-12-31	643
2005-03-31	552
2005-06-30	1214
2005-09-30	357
2005-12-31	270
2006-03-31	583
2006-06-30	629
2006-09-30	829
2006-12-31	1967
2007-03-31	2679
2007-06-30	590
2007-09-30	1153
2007-12-31	808
2008-03-31	1435
2008-06-30	1178
2008-09-30	866
2008-12-31	986
2009-03-31	967
2009-06-30	922
2009-09-30	841
2009-12-31	2081
2010-03-31	2363
2010-06-30	1800
2010-09-30	2321
2010-12-31	2052
2011-03-31	2805
2011-06-30	1683
2011-09-30	1701
2011-12-31	1973
2012-03-31	2512
2012-06-30	1986
2012-09-30	2915
2012-12-31	1953
2013-03-31	2267
2013-06-30	2020
2013-09-30	1365
2013-12-31	1654
2014-03-31	2313
2014-06-30	1800
2014-09-30	1710
2014-12-31	1487
2015-03-31	1415
2015-06-30	1603
2015-09-30	1004
2015-12-31	1186
2016-03-31	2323
2016-06-30	2976
2016-09-30	2766
2016-12-31	1866
2017-03-31	1311
2017-06-30	2100
2017-09-30	1215
2017-12-31	823
2018-03-31	661
2018-06-30	837
2018-09-30	1123
2018-12-31	644
2019-03-31	1044
2019-06-30	580
2019-09-30	768
2019-12-31	844
2020-03-31	1532
2020-06-30	1927
2020-09-30	500
2020-12-31	400
2021-03-31	1827
2021-06-30	2377
2021-09-30	2817
2021-12-31	1380
2022-03-31	1799
2022-06-30	1255
2022-09-30	1917
2022-12-31	1531
2023-03-31	1587
2023-06-30	895
2023-09-30	1004