Quarter	US dollars
2004-12-31	0
2005-03-31	4
2005-06-30	2
2005-09-30	0
2005-12-31	0
2006-03-31	0
2006-06-30	0
2006-09-30	-2
2006-12-31	1724
2007-03-31	1757
2007-06-30	1778
2007-09-30	1836
2007-12-31	1814
2008-03-31	1791
2008-06-30	1799
2008-09-30	1861
2008-12-31	1899
2009-03-31	1864
2009-06-30	1854
2009-09-30	1799
2009-12-31	1671
2010-03-31	1677
2010-06-30	1638
2010-09-30	1687
2010-12-31	1736
2011-03-31	1802
2011-06-30	1773
2011-09-30	1701
2011-12-31	1721
2012-03-31	1838
2012-06-30	1804
2012-09-30	1728
2012-12-31	95
2013-03-31	85
2013-06-30	80
2013-09-30	78
2013-12-31	5
2014-03-31	5
2014-06-30	3
2014-09-30	5
2014-12-31	2
2015-03-31	1
2015-06-30	5
2015-09-30	6
2015-12-31	6
2016-03-31	6
2016-06-30	1
2016-09-30	0
2016-12-31	4
2017-03-31	4
2017-06-30	3
2017-09-30	3
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	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