Quarter	US dollars
1999-09-30	710
1999-12-31	932
2000-03-31	676
2000-06-30	675
2000-09-30	647
2000-12-31	559
2001-03-31	748
2001-06-30	691
2001-09-30	654
2001-12-31	585
2002-03-31	581
2002-06-30	639
2002-09-30	703
2002-12-31	758
2003-03-31	669
2003-06-30	688
2003-09-30	914
2003-12-31	1017
2004-03-31	1377
2004-06-30	818
2004-09-30	749
2004-12-31	897
2005-03-31	769
2005-06-30	608
2005-09-30	492
2005-12-31	561
2006-03-31	34
2006-06-30	21
2006-09-30	37
2006-12-31	27
2007-03-31	45
2007-06-30	74
2007-09-30	33
2007-12-31	64
2008-03-31	30
2008-06-30	60
2008-09-30	41
2008-12-31	45
2009-03-31	27
2009-06-30	26
2009-09-30	24
2009-12-31	37
2010-03-31	44
2010-06-30	94
2010-09-30	52
2010-12-31	41
2011-03-31	42
2011-06-30	35
2011-09-30	37
2011-12-31	57
2012-03-31	142
2012-06-30	158
2012-09-30	120
2012-12-31	97
2013-03-31	59
2013-06-30	44
2013-09-30	44
2013-12-31	41
2014-03-31	40
2014-06-30	39
2014-09-30	36
2014-12-31	34
2015-03-31	42
2015-06-30	38
2015-09-30	103
2015-12-31	82
2016-03-31	1258
2016-06-30	17
2016-09-30	13
2016-12-31	11
2017-03-31	9
2017-06-30	6
2017-09-30	0
2017-12-31	0
2018-03-31	0
2018-06-30	0
2018-09-30	0
2018-12-31	0
2019-03-31	0
2019-06-30	0
2019-09-30	0
2019-12-31	1
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