Quarter US dollars 2004-12-31 163 2005-03-31 2 2005-06-30 25 2005-09-30 48 2005-12-31 2 2006-03-31 2 2006-06-30 2 2006-09-30 2 2006-12-31 6 2007-03-31 4 2007-06-30 12 2007-09-30 43 2007-12-31 62 2008-03-31 60 2008-06-30 32 2008-09-30 36 2008-12-31 12 2009-03-31 17 2009-06-30 15 2009-09-30 13 2009-12-31 16 2010-03-31 12 2010-06-30 10 2010-09-30 11 2010-12-31 13 2011-03-31 14 2011-06-30 14 2011-09-30 17 2011-12-31 15 2012-03-31 18 2012-06-30 38 2012-09-30 65 2012-12-31 50 2013-03-31 47 2013-06-30 44 2013-09-30 37 2013-12-31 50 2014-03-31 45 2014-06-30 43 2014-09-30 58 2014-12-31 58 2015-03-31 62 2015-06-30 63 2015-09-30 115 2015-12-31 148 2016-03-31 119 2016-06-30 106 2016-09-30 68 2016-12-31 91 2017-03-31 90 2017-06-30 81 2017-09-30 99 2017-12-31 74 2018-03-31 126 2018-06-30 180 2018-09-30 292 2018-12-31 336 2019-03-31 276 2019-06-30 263 2019-09-30 193 2019-12-31 177 2020-03-31 134 2020-06-30 126 2020-09-30 137 2020-12-31 136 2021-03-31 135 2021-06-30 123 2021-09-30 107 2021-12-31 171 2022-03-31 92 2022-06-30 94 2022-09-30 113 2022-12-31 231 2023-03-31 98 2023-06-30 118 2023-09-30 87