Quarter US dollars 2004-12-31 113 2005-03-31 98 2005-06-30 84 2005-09-30 104 2005-12-31 103 2006-03-31 220 2006-06-30 179 2006-09-30 226 2006-12-31 241 2007-03-31 100 2007-06-30 130 2007-09-30 134 2007-12-31 82 2008-03-31 119 2008-06-30 119 2008-09-30 75 2008-12-31 85 2009-03-31 80 2009-06-30 56 2009-09-30 69 2009-12-31 79 2010-03-31 76 2010-06-30 117 2010-09-30 236 2010-12-31 272 2011-03-31 176 2011-06-30 239 2011-09-30 227 2011-12-31 173 2012-03-31 104 2012-06-30 202 2012-09-30 208 2012-12-31 205 2013-03-31 129 2013-06-30 138 2013-09-30 130 2013-12-31 68 2014-03-31 85 2014-06-30 94 2014-09-30 78 2014-12-31 80 2015-03-31 73 2015-06-30 82 2015-09-30 61 2015-12-31 55 2016-03-31 47 2016-06-30 47 2016-09-30 51 2016-12-31 71 2017-03-31 71 2017-06-30 52 2017-09-30 39 2017-12-31 36 2018-03-31 38 2018-06-30 34 2018-09-30 368 2018-12-31 29 2019-03-31 59 2019-06-30 41 2019-09-30 33 2019-12-31 36 2020-03-31 26 2020-06-30 28 2020-09-30 25 2020-12-31 29 2021-03-31 32 2021-06-30 33 2021-09-30 38 2021-12-31 36 2022-03-31 38 2022-06-30 39 2022-09-30 37 2022-12-31 42 2023-03-31 49 2023-06-30 72 2023-09-30 58