Quarter	US dollars
2004-12-31	772
2005-03-31	792
2005-06-30	715
2005-09-30	396
2005-12-31	175
2006-03-31	657
2006-06-30	623
2006-09-30	598
2006-12-31	714
2007-03-31	694
2007-06-30	742
2007-09-30	1284
2007-12-31	794
2008-03-31	896
2008-06-30	792
2008-09-30	902
2008-12-31	827
2009-03-31	956
2009-06-30	1168
2009-09-30	953
2009-12-31	864
2010-03-31	811
2010-06-30	797
2010-09-30	759
2010-12-31	811
2011-03-31	731
2011-06-30	637
2011-09-30	916
2011-12-31	1068
2012-03-31	1076
2012-06-30	2952
2012-09-30	2589
2012-12-31	2511
2013-03-31	2323
2013-06-30	2240
2013-09-30	2337
2013-12-31	2316
2014-03-31	2017
2014-06-30	2207
2014-09-30	2093
2014-12-31	1826
2015-03-31	1853
2015-06-30	1751
2015-09-30	1989
2015-12-31	2158
2016-03-31	2200
2016-06-30	2030
2016-09-30	2464
2016-12-31	2232
2017-03-31	2135
2017-06-30	2210
2017-09-30	2234
2017-12-31	2390
2018-03-31	2230
2018-06-30	2175
2018-09-30	2187
2018-12-31	2384
2019-03-31	2775
2019-06-30	2533
2019-09-30	2513
2019-12-31	2448
2020-03-31	2735
2020-06-30	2677
2020-09-30	2470
2020-12-31	2292
2021-03-31	2051
2021-06-30	1915
2021-09-30	2364
2021-12-31	2128
2022-03-31	2037
2022-06-30	1963
2022-09-30	1845
2022-12-31	1404
2023-03-31	883
2023-06-30	610
2023-09-30	393