Quarter US dollars 2004-12-31 179 2005-03-31 185 2005-06-30 120 2005-09-30 106 2005-12-31 120 2006-03-31 125 2006-06-30 139 2006-09-30 347 2006-12-31 969 2007-03-31 1202 2007-06-30 1964 2007-09-30 650 2007-12-31 1244 2008-03-31 876 2008-06-30 693 2008-09-30 581 2008-12-31 625 2009-03-31 483 2009-06-30 517 2009-09-30 517 2009-12-31 567 2010-03-31 599 2010-06-30 474 2010-09-30 255 2010-12-31 138 2011-03-31 119 2011-06-30 116 2011-09-30 104 2011-12-31 167 2012-03-31 340 2012-06-30 28 2012-09-30 21 2012-12-31 108 2013-03-31 96 2013-06-30 94 2013-09-30 26 2013-12-31 255 2014-03-31 33 2014-06-30 43 2014-09-30 39 2014-12-31 16 2015-03-31 37 2015-06-30 49 2015-09-30 33 2015-12-31 95 2016-03-31 49 2016-06-30 59 2016-09-30 82 2016-12-31 42 2017-03-31 5 2017-06-30 5 2017-09-30 4 2017-12-31 16 2018-03-31 18 2018-06-30 4 2018-09-30 1 2018-12-31 1 2019-03-31 3 2019-06-30 1 2019-09-30 1 2019-12-31 1 2020-03-31 1 2020-06-30 1 2020-09-30 0 2020-12-31 0 2021-03-31 0 2021-06-30 3 2021-09-30 0 2021-12-31 0 2022-03-31 1 2022-06-30 0 2022-09-30 2 2022-12-31 0 2023-03-31 0 2023-06-30 0 2023-09-30 0