Quarter US dollars 2004-12-31 33 2005-03-31 30 2005-06-30 23 2005-09-30 21 2005-12-31 31 2006-03-31 35 2006-06-30 18 2006-09-30 15 2006-12-31 63 2007-03-31 45 2007-06-30 50 2007-09-30 43 2007-12-31 76 2008-03-31 149 2008-06-30 265 2008-09-30 301 2008-12-31 275 2009-03-31 179 2009-06-30 170 2009-09-30 106 2009-12-31 102 2010-03-31 247 2010-06-30 88 2010-09-30 87 2010-12-31 80 2011-03-31 447 2011-06-30 461 2011-09-30 327 2011-12-31 349 2012-03-31 145 2012-06-30 136 2012-09-30 105 2012-12-31 165 2013-03-31 152 2013-06-30 146 2013-09-30 513 2013-12-31 382 2014-03-31 479 2014-06-30 836 2014-09-30 822 2014-12-31 986 2015-03-31 1157 2015-06-30 939 2015-09-30 816 2015-12-31 768 2016-03-31 614 2016-06-30 551 2016-09-30 495 2016-12-31 375 2017-03-31 404 2017-06-30 261 2017-09-30 294 2017-12-31 263 2018-03-31 299 2018-06-30 149 2018-09-30 869 2018-12-31 70 2019-03-31 180 2019-06-30 69 2019-09-30 851 2019-12-31 89 2020-03-31 190 2020-06-30 131 2020-09-30 638 2020-12-31 253 2021-03-31 160 2021-06-30 153 2021-09-30 262 2021-12-31 259 2022-03-31 266 2022-06-30 232 2022-09-30 199 2022-12-31 190 2023-03-31 1313 2023-06-30 1316 2023-09-30 1195