Quarter	US dollars
2004-12-31	516
2005-03-31	662
2005-06-30	722
2005-09-30	601
2005-12-31	750
2006-03-31	671
2006-06-30	928
2006-09-30	927
2006-12-31	755
2007-03-31	684
2007-06-30	638
2007-09-30	658
2007-12-31	631
2008-03-31	634
2008-06-30	653
2008-09-30	545
2008-12-31	472
2009-03-31	447
2009-06-30	476
2009-09-30	464
2009-12-31	420
2010-03-31	387
2010-06-30	304
2010-09-30	161
2010-12-31	153
2011-03-31	141
2011-06-30	119
2011-09-30	97
2011-12-31	102
2012-03-31	85
2012-06-30	78
2012-09-30	69
2012-12-31	68
2013-03-31	44
2013-06-30	50
2013-09-30	45
2013-12-31	45
2014-03-31	38
2014-06-30	31
2014-09-30	21
2014-12-31	17
2015-03-31	45
2015-06-30	36
2015-09-30	29
2015-12-31	21
2016-03-31	19
2016-06-30	15
2016-09-30	13
2016-12-31	9
2017-03-31	9
2017-06-30	6
2017-09-30	7
2017-12-31	4
2018-03-31	4
2018-06-30	1
2018-09-30	0
2018-12-31	0
2019-03-31	0
2019-06-30	0
2019-09-30	0
2019-12-31	0
2020-03-31	0
2020-06-30	0
2020-09-30	0
2020-12-31	0
2021-03-31	0
2021-06-30	0
2021-09-30	0
2021-12-31	0
2022-03-31	0
2022-06-30	0
2022-09-30	0
2022-12-31	0
2023-03-31	0
2023-06-30	0
2023-09-30	0