Quarter	US dollars
2004-12-31	288
2005-03-31	263
2005-06-30	251
2005-09-30	233
2005-12-31	393
2006-03-31	468
2006-06-30	218
2006-09-30	254
2006-12-31	223
2007-03-31	810
2007-06-30	421
2007-09-30	1231
2007-12-31	761
2008-03-31	582
2008-06-30	523
2008-09-30	1110
2008-12-31	982
2009-03-31	807
2009-06-30	784
2009-09-30	860
2009-12-31	740
2010-03-31	631
2010-06-30	842
2010-09-30	975
2010-12-31	906
2011-03-31	811
2011-06-30	926
2011-09-30	879
2011-12-31	982
2012-03-31	1549
2012-06-30	2296
2012-09-30	1925
2012-12-31	1051
2013-03-31	1007
2013-06-30	1822
2013-09-30	2470
2013-12-31	693
2014-03-31	710
2014-06-30	1631
2014-09-30	723
2014-12-31	1052
2015-03-31	956
2015-06-30	1011
2015-09-30	962
2015-12-31	1064
2016-03-31	975
2016-06-30	919
2016-09-30	803
2016-12-31	753
2017-03-31	492
2017-06-30	26
2017-09-30	21
2017-12-31	73
2018-03-31	258
2018-06-30	230
2018-09-30	395
2018-12-31	693
2019-03-31	567
2019-06-30	518
2019-09-30	489
2019-12-31	606
2020-03-31	620
2020-06-30	570
2020-09-30	561
2020-12-31	513
2021-03-31	933
2021-06-30	1045
2021-09-30	471
2021-12-31	526
2022-03-31	354
2022-06-30	727
2022-09-30	551
2022-12-31	327
2023-03-31	915
2023-06-30	981
2023-09-30	557