Quarter US dollars 2004-12-31 48 2005-03-31 51 2005-06-30 43 2005-09-30 23 2005-12-31 38 2006-03-31 31 2006-06-30 39 2006-09-30 108 2006-12-31 110 2007-03-31 106 2007-06-30 106 2007-09-30 75 2007-12-31 62 2008-03-31 93 2008-06-30 48 2008-09-30 50 2008-12-31 68 2009-03-31 19 2009-06-30 16 2009-09-30 18 2009-12-31 15 2010-03-31 44 2010-06-30 87 2010-09-30 33 2010-12-31 19 2011-03-31 42 2011-06-30 31 2011-09-30 37 2011-12-31 29 2012-03-31 35 2012-06-30 20 2012-09-30 18 2012-12-31 52 2013-03-31 46 2013-06-30 24 2013-09-30 26 2013-12-31 45 2014-03-31 42 2014-06-30 72 2014-09-30 52 2014-12-31 34 2015-03-31 12 2015-06-30 11 2015-09-30 9 2015-12-31 6 2016-03-31 0 2016-06-30 172 2016-09-30 129 2016-12-31 125 2017-03-31 99 2017-06-30 88 2017-09-30 66 2017-12-31 70 2018-03-31 39 2018-06-30 82 2018-09-30 74 2018-12-31 98 2019-03-31 29 2019-06-30 0 2019-09-30 0 2019-12-31 0 2020-03-31 0 2020-06-30 7 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