Quarter US dollars 2004-12-31 96 2005-03-31 134 2005-06-30 195 2005-09-30 203 2005-12-31 348 2006-03-31 553 2006-06-30 1814 2006-09-30 1954 2006-12-31 2057 2007-03-31 363 2007-06-30 417 2007-09-30 1047 2007-12-31 1404 2008-03-31 1526 2008-06-30 1596 2008-09-30 2167 2008-12-31 1823 2009-03-31 1791 2009-06-30 1607 2009-09-30 1566 2009-12-31 1402 2010-03-31 869 2010-06-30 865 2010-09-30 824 2010-12-31 1407 2011-03-31 1463 2011-06-30 1837 2011-09-30 6409 2011-12-31 5730 2012-03-31 9029 2012-06-30 8505 2012-09-30 8543 2012-12-31 10027 2013-03-31 11735 2013-06-30 12805 2013-09-30 11545 2013-12-31 10155 2014-03-31 9107 2014-06-30 11997 2014-09-30 9267 2014-12-31 6743 2015-03-31 5308 2015-06-30 4643 2015-09-30 3838 2015-12-31 3561 2016-03-31 3701 2016-06-30 3345 2016-09-30 3009 2016-12-31 2719 2017-03-31 2575 2017-06-30 2254 2017-09-30 2015 2017-12-31 1981 2018-03-31 1500 2018-06-30 1332 2018-09-30 853 2018-12-31 1258 2019-03-31 1071 2019-06-30 1026 2019-09-30 898 2019-12-31 774 2020-03-31 631 2020-06-30 690 2020-09-30 702 2020-12-31 655 2021-03-31 679 2021-06-30 629 2021-09-30 677 2021-12-31 714 2022-03-31 765 2022-06-30 801 2022-09-30 891 2022-12-31 969 2023-03-31 1065 2023-06-30 974 2023-09-30 989