Quarter US dollars 2004-12-31 117 2005-03-31 779 2005-06-30 792 2005-09-30 92 2005-12-31 105 2006-03-31 163 2006-06-30 109 2006-09-30 129 2006-12-31 117 2007-03-31 126 2007-06-30 104 2007-09-30 94 2007-12-31 94 2008-03-31 80 2008-06-30 78 2008-09-30 71 2008-12-31 69 2009-03-31 85 2009-06-30 94 2009-09-30 96 2009-12-31 78 2010-03-31 85 2010-06-30 99 2010-09-30 106 2010-12-31 85 2011-03-31 77 2011-06-30 55 2011-09-30 78 2011-12-31 73 2012-03-31 83 2012-06-30 86 2012-09-30 81 2012-12-31 107 2013-03-31 129 2013-06-30 129 2013-09-30 115 2013-12-31 159 2014-03-31 257 2014-06-30 267 2014-09-30 101 2014-12-31 192 2015-03-31 184 2015-06-30 223 2015-09-30 236 2015-12-31 184 2016-03-31 312 2016-06-30 149 2016-09-30 135 2016-12-31 150 2017-03-31 158 2017-06-30 229 2017-09-30 101 2017-12-31 284 2018-03-31 101 2018-06-30 100 2018-09-30 56 2018-12-31 38 2019-03-31 34 2019-06-30 34 2019-09-30 71 2019-12-31 73 2020-03-31 77 2020-06-30 78 2020-09-30 63 2020-12-31 71 2021-03-31 65 2021-06-30 50 2021-09-30 181 2021-12-31 65 2022-03-31 70 2022-06-30 61 2022-09-30 107 2022-12-31 110 2023-03-31 49 2023-06-30 78 2023-09-30 114