Quarter US dollars 2004-12-31 88 2005-03-31 91 2005-06-30 106 2005-09-30 92 2005-12-31 282 2006-03-31 246 2006-06-30 301 2006-09-30 245 2006-12-31 360 2007-03-31 508 2007-06-30 600 2007-09-30 672 2007-12-31 679 2008-03-31 817 2008-06-30 782 2008-09-30 711 2008-12-31 528 2009-03-31 433 2009-06-30 417 2009-09-30 392 2009-12-31 137 2010-03-31 167 2010-06-30 450 2010-09-30 150 2010-12-31 157 2011-03-31 157 2011-06-30 165 2011-09-30 245 2011-12-31 195 2012-03-31 153 2012-06-30 143 2012-09-30 137 2012-12-31 194 2013-03-31 156 2013-06-30 211 2013-09-30 215 2013-12-31 200 2014-03-31 178 2014-06-30 159 2014-09-30 164 2014-12-31 164 2015-03-31 82 2015-06-30 77 2015-09-30 83 2015-12-31 80 2016-03-31 49 2016-06-30 87 2016-09-30 55 2016-12-31 165 2017-03-31 329 2017-06-30 113 2017-09-30 89 2017-12-31 76 2018-03-31 83 2018-06-30 102 2018-09-30 78 2018-12-31 130 2019-03-31 164 2019-06-30 126 2019-09-30 124 2019-12-31 106 2020-03-31 96 2020-06-30 147 2020-09-30 248 2020-12-31 157 2021-03-31 117 2021-06-30 112 2021-09-30 129 2021-12-31 90 2022-03-31 107 2022-06-30 73 2022-09-30 64 2022-12-31 43 2023-03-31 118 2023-06-30 100 2023-09-30 189