Quarter	US dollars
1999-09-30	176
1999-12-31	206
2000-03-31	206
2000-06-30	206
2000-09-30	208
2000-12-31	209
2001-03-31	192
2001-06-30	172
2001-09-30	160
2001-12-31	157
2002-03-31	154
2002-06-30	108
2002-09-30	44
2002-12-31	43
2003-03-31	32
2003-06-30	17
2003-09-30	12
2003-12-31	30
2004-03-31	46
2004-06-30	20
2004-09-30	24
2004-12-31	33
2005-03-31	42
2005-06-30	20
2005-09-30	12
2005-12-31	17
2006-03-31	26
2006-06-30	28
2006-09-30	21
2006-12-31	1777
2007-03-31	1779
2007-06-30	1800
2007-09-30	1872
2007-12-31	1848
2008-03-31	1838
2008-06-30	1859
2008-09-30	1894
2008-12-31	1954
2009-03-31	1905
2009-06-30	1876
2009-09-30	1830
2009-12-31	1726
2010-03-31	1696
2010-06-30	1673
2010-09-30	1709
2010-12-31	1747
2011-03-31	1853
2011-06-30	1846
2011-09-30	1756
2011-12-31	1814
2012-03-31	1884
2012-06-30	1835
2012-09-30	1757
2012-12-31	178
2013-03-31	164
2013-06-30	170
2013-09-30	180
2013-12-31	96
2014-03-31	90
2014-06-30	60
2014-09-30	66
2014-12-31	48
2015-03-31	71
2015-06-30	60
2015-09-30	74
2015-12-31	46
2016-03-31	62
2016-06-30	82
2016-09-30	56
2016-12-31	49
2017-03-31	55
2017-06-30	47
2017-09-30	54
2017-12-31	41
2018-03-31	35
2018-06-30	49
2018-09-30	4
2018-12-31	37
2019-03-31	18
2019-06-30	14
2019-09-30	-26
2019-12-31	-11
2020-03-31	12
2020-06-30	62
2020-09-30	75
2020-12-31	74
2021-03-31	50
2021-06-30	3
2021-09-30	4
2021-12-31	7
2022-03-31	11
2022-06-30	5
2022-09-30	2
2022-12-31	1
2023-03-31	12
2023-06-30	8
2023-09-30	25