Quarter US dollars 2004-12-31 267 2005-03-31 308 2005-06-30 280 2005-09-30 276 2005-12-31 237 2006-03-31 139 2006-06-30 200 2006-09-30 114 2006-12-31 231 2007-03-31 708 2007-06-30 343 2007-09-30 206 2007-12-31 269 2008-03-31 346 2008-06-30 382 2008-09-30 349 2008-12-31 457 2009-03-31 363 2009-06-30 295 2009-09-30 202 2009-12-31 287 2010-03-31 279 2010-06-30 67 2010-09-30 76 2010-12-31 89 2011-03-31 50 2011-06-30 59 2011-09-30 33 2011-12-31 66 2012-03-31 86 2012-06-30 82 2012-09-30 97 2012-12-31 115 2013-03-31 46 2013-06-30 85 2013-09-30 105 2013-12-31 167 2014-03-31 180 2014-06-30 145 2014-09-30 141 2014-12-31 108 2015-03-31 146 2015-06-30 93 2015-09-30 161 2015-12-31 122 2016-03-31 119 2016-06-30 90 2016-09-30 109 2016-12-31 140 2017-03-31 104 2017-06-30 78 2017-09-30 102 2017-12-31 142 2018-03-31 100 2018-06-30 81 2018-09-30 82 2018-12-31 59 2019-03-31 50 2019-06-30 37 2019-09-30 28 2019-12-31 63 2020-03-31 7 2020-06-30 7 2020-09-30 129 2020-12-31 101 2021-03-31 217 2021-06-30 292 2021-09-30 26 2021-12-31 108 2022-03-31 0 2022-06-30 0 2022-09-30 0 2022-12-31 0 2023-03-31 130 2023-06-30 156 2023-09-30 51