Quarter	US dollars
2004-12-31	332
2005-03-31	299
2005-06-30	285
2005-09-30	256
2005-12-31	235
2006-03-31	224
2006-06-30	235
2006-09-30	206
2006-12-31	205
2007-03-31	180
2007-06-30	183
2007-09-30	161
2007-12-31	145
2008-03-31	123
2008-06-30	121
2008-09-30	30
2008-12-31	93
2009-03-31	77
2009-06-30	84
2009-09-30	59
2009-12-31	60
2010-03-31	39
2010-06-30	18
2010-09-30	14
2010-12-31	16
2011-03-31	13
2011-06-30	13
2011-09-30	0
2011-12-31	11
2012-03-31	10
2012-06-30	9
2012-09-30	24
2012-12-31	18
2013-03-31	17
2013-06-30	6
2013-09-30	5
2013-12-31	5
2014-03-31	3
2014-06-30	43
2014-09-30	3
2014-12-31	3
2015-03-31	1
2015-06-30	2
2015-09-30	0
2015-12-31	0
2016-03-31	0
2016-06-30	0
2016-09-30	0
2016-12-31	0
2017-03-31	0
2017-06-30	216
2017-09-30	250
2017-12-31	286
2018-03-31	267
2018-06-30	202
2018-09-30	379
2018-12-31	406
2019-03-31	437
2019-06-30	392
2019-09-30	432
2019-12-31	437
2020-03-31	434
2020-06-30	394
2020-09-30	570
2020-12-31	543
2021-03-31	577
2021-06-30	575
2021-09-30	539
2021-12-31	535
2022-03-31	549
2022-06-30	488
2022-09-30	493
2022-12-31	516
2023-03-31	482
2023-06-30	502
2023-09-30	486