Quarter	US dollars
2004-12-31	154
2005-03-31	147
2005-06-30	142
2005-09-30	14
2005-12-31	228
2006-03-31	219
2006-06-30	215
2006-09-30	271
2006-12-31	207
2007-03-31	180
2007-06-30	112
2007-09-30	0
2007-12-31	40
2008-03-31	40
2008-06-30	40
2008-09-30	39
2008-12-31	0
2009-03-31	0
2009-06-30	0
2009-09-30	0
2009-12-31	0
2010-03-31	0
2010-06-30	0
2010-09-30	0
2010-12-31	0
2011-03-31	0
2011-06-30	0
2011-09-30	0
2011-12-31	0
2012-03-31	0
2012-06-30	0
2012-09-30	0
2012-12-31	6
2013-03-31	14
2013-06-30	35
2013-09-30	97
2013-12-31	127
2014-03-31	155
2014-06-30	181
2014-09-30	198
2014-12-31	240
2015-03-31	209
2015-06-30	153
2015-09-30	189
2015-12-31	184
2016-03-31	201
2016-06-30	193
2016-09-30	226
2016-12-31	256
2017-03-31	554
2017-06-30	379
2017-09-30	378
2017-12-31	431
2018-03-31	328
2018-06-30	290
2018-09-30	300
2018-12-31	472
2019-03-31	546
2019-06-30	538
2019-09-30	529
2019-12-31	499
2020-03-31	494
2020-06-30	528
2020-09-30	562
2020-12-31	577
2021-03-31	559
2021-06-30	573
2021-09-30	611
2021-12-31	604
2022-03-31	565
2022-06-30	577
2022-09-30	574
2022-12-31	580
2023-03-31	595
2023-06-30	584
2023-09-30	623