Quarter US dollars 2004-12-31 252 2005-03-31 240 2005-06-30 274 2005-09-30 269 2005-12-31 249 2006-03-31 255 2006-06-30 252 2006-09-30 291 2006-12-31 303 2007-03-31 294 2007-06-30 325 2007-09-30 450 2007-12-31 452 2008-03-31 499 2008-06-30 406 2008-09-30 367 2008-12-31 299 2009-03-31 337 2009-06-30 357 2009-09-30 262 2009-12-31 79 2010-03-31 82 2010-06-30 168 2010-09-30 181 2010-12-31 135 2011-03-31 130 2011-06-30 146 2011-09-30 151 2011-12-31 119 2012-03-31 205 2012-06-30 248 2012-09-30 329 2012-12-31 312 2013-03-31 364 2013-06-30 317 2013-09-30 452 2013-12-31 488 2014-03-31 450 2014-06-30 433 2014-09-30 470 2014-12-31 406 2015-03-31 404 2015-06-30 420 2015-09-30 412 2015-12-31 431 2016-03-31 418 2016-06-30 521 2016-09-30 477 2016-12-31 458 2017-03-31 497 2017-06-30 801 2017-09-30 754 2017-12-31 893 2018-03-31 822 2018-06-30 717 2018-09-30 694 2018-12-31 584 2019-03-31 820 2019-06-30 783 2019-09-30 683 2019-12-31 848 2020-03-31 721 2020-06-30 706 2020-09-30 795 2020-12-31 853 2021-03-31 825 2021-06-30 792 2021-09-30 688 2021-12-31 733 2022-03-31 699 2022-06-30 657 2022-09-30 720 2022-12-31 762 2023-03-31 722 2023-06-30 707 2023-09-30 851