Quarter US dollars 2004-12-31 21 2005-03-31 55 2005-06-30 54 2005-09-30 64 2005-12-31 53 2006-03-31 50 2006-06-30 52 2006-09-30 32 2006-12-31 2765 2007-03-31 2844 2007-06-30 3838 2007-09-30 4209 2007-12-31 4577 2008-03-31 9971 2008-06-30 9958 2008-09-30 10103 2008-12-31 68 2009-03-31 10099 2009-06-30 10092 2009-09-30 27 2009-12-31 10162 2010-03-31 10493 2010-06-30 1267 2010-09-30 4849 2010-12-31 7834 2011-03-31 10535 2011-06-30 6922 2011-09-30 14093 2011-12-31 13003 2012-03-31 9159 2012-06-30 7314 2012-09-30 5505 2012-12-31 9921 2013-03-31 3495 2013-06-30 3957 2013-09-30 10926 2013-12-31 8224 2014-03-31 1262 2014-06-30 1265 2014-09-30 7898 2014-12-31 1372 2015-03-31 43 2015-06-30 33 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 0 2017-09-30 0 2017-12-31 0 2018-03-31 0 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