Quarter	US dollars
2004-12-31	311
2005-03-31	299
2005-06-30	283
2005-09-30	288
2005-12-31	261
2006-03-31	258
2006-06-30	292
2006-09-30	258
2006-12-31	274
2007-03-31	275
2007-06-30	32
2007-09-30	112
2007-12-31	119
2008-03-31	129
2008-06-30	24
2008-09-30	171
2008-12-31	168
2009-03-31	148
2009-06-30	147
2009-09-30	152
2009-12-31	163
2010-03-31	211
2010-06-30	169
2010-09-30	246
2010-12-31	368
2011-03-31	441
2011-06-30	369
2011-09-30	399
2011-12-31	442
2012-03-31	459
2012-06-30	453
2012-09-30	472
2012-12-31	479
2013-03-31	504
2013-06-30	507
2013-09-30	502
2013-12-31	36
2014-03-31	37
2014-06-30	39
2014-09-30	37
2014-12-31	34
2015-03-31	31
2015-06-30	31
2015-09-30	30
2015-12-31	33
2016-03-31	33
2016-06-30	32
2016-09-30	31
2016-12-31	134
2017-03-31	35
2017-06-30	32
2017-09-30	13
2017-12-31	14
2018-03-31	10
2018-06-30	8
2018-09-30	16
2018-12-31	9
2019-03-31	5
2019-06-30	6
2019-09-30	4
2019-12-31	3
2020-03-31	4
2020-06-30	4
2020-09-30	4
2020-12-31	4
2021-03-31	0
2021-06-30	3
2021-09-30	0
2021-12-31	0
2022-03-31	0
2022-06-30	0
2022-09-30	-5
2022-12-31	6
2023-03-31	4
2023-06-30	6
2023-09-30	7