Quarter US dollars 2004-12-31 65 2005-03-31 64 2005-06-30 57 2005-09-30 387 2005-12-31 21 2006-03-31 7 2006-06-30 20 2006-09-30 58 2006-12-31 22 2007-03-31 10 2007-06-30 14 2007-09-30 51 2007-12-31 42 2008-03-31 91 2008-06-30 113 2008-09-30 112 2008-12-31 119 2009-03-31 59 2009-06-30 26 2009-09-30 61 2009-12-31 97 2010-03-31 156 2010-06-30 169 2010-09-30 57 2010-12-31 86 2011-03-31 51 2011-06-30 34 2011-09-30 145 2011-12-31 91 2012-03-31 101 2012-06-30 130 2012-09-30 102 2012-12-31 146 2013-03-31 114 2013-06-30 83 2013-09-30 248 2013-12-31 142 2014-03-31 170 2014-06-30 173 2014-09-30 248 2014-12-31 164 2015-03-31 230 2015-06-30 69 2015-09-30 48 2015-12-31 74 2016-03-31 114 2016-06-30 36 2016-09-30 51 2016-12-31 62 2017-03-31 74 2017-06-30 90 2017-09-30 130 2017-12-31 122 2018-03-31 131 2018-06-30 70 2018-09-30 123 2018-12-31 91 2019-03-31 76 2019-06-30 122 2019-09-30 74 2019-12-31 8 2020-03-31 128 2020-06-30 53 2020-09-30 12 2020-12-31 66 2021-03-31 23 2021-06-30 23 2021-09-30 77 2021-12-31 112 2022-03-31 49 2022-06-30 75 2022-09-30 45 2022-12-31 114 2023-03-31 72 2023-06-30 46 2023-09-30 127