Quarter US dollars 2004-12-31 63 2005-03-31 62 2005-06-30 4 2005-09-30 92 2005-12-31 100 2006-03-31 92 2006-06-30 92 2006-09-30 114 2006-12-31 106 2007-03-31 137 2007-06-30 118 2007-09-30 126 2007-12-31 125 2008-03-31 258 2008-06-30 249 2008-09-30 155 2008-12-31 78 2009-03-31 112 2009-06-30 102 2009-09-30 82 2009-12-31 208 2010-03-31 206 2010-06-30 70 2010-09-30 90 2010-12-31 116 2011-03-31 107 2011-06-30 109 2011-09-30 181 2011-12-31 167 2012-03-31 219 2012-06-30 122 2012-09-30 74 2012-12-31 199 2013-03-31 143 2013-06-30 149 2013-09-30 120 2013-12-31 106 2014-03-31 153 2014-06-30 152 2014-09-30 133 2014-12-31 126 2015-03-31 137 2015-06-30 123 2015-09-30 176 2015-12-31 105 2016-03-31 45 2016-06-30 54 2016-09-30 69 2016-12-31 11 2017-03-31 30 2017-06-30 45 2017-09-30 34 2017-12-31 38 2018-03-31 44 2018-06-30 40 2018-09-30 25 2018-12-31 27 2019-03-31 30 2019-06-30 24 2019-09-30 28 2019-12-31 25 2020-03-31 41 2020-06-30 16 2020-09-30 10 2020-12-31 27 2021-03-31 18 2021-06-30 32 2021-09-30 36 2021-12-31 31 2022-03-31 36 2022-06-30 36 2022-09-30 71 2022-12-31 129 2023-03-31 49 2023-06-30 67 2023-09-30 56