Quarter US dollars 2004-12-31 38 2005-03-31 25 2005-06-30 36 2005-09-30 35 2005-12-31 15 2006-03-31 10 2006-06-30 13 2006-09-30 45 2006-12-31 47 2007-03-31 73 2007-06-30 80 2007-09-30 79 2007-12-31 74 2008-03-31 175 2008-06-30 76 2008-09-30 45 2008-12-31 29 2009-03-31 29 2009-06-30 48 2009-09-30 46 2009-12-31 48 2010-03-31 56 2010-06-30 66 2010-09-30 57 2010-12-31 55 2011-03-31 46 2011-06-30 47 2011-09-30 44 2011-12-31 39 2012-03-31 35 2012-06-30 31 2012-09-30 42 2012-12-31 19 2013-03-31 18 2013-06-30 15 2013-09-30 8 2013-12-31 5 2014-03-31 10 2014-06-30 3 2014-09-30 250 2014-12-31 72 2015-03-31 7 2015-06-30 30 2015-09-30 204 2015-12-31 265 2016-03-31 226 2016-06-30 180 2016-09-30 87 2016-12-31 426 2017-03-31 215 2017-06-30 466 2017-09-30 542 2017-12-31 773 2018-03-31 1037 2018-06-30 965 2018-09-30 1116 2018-12-31 1038 2019-03-31 526 2019-06-30 500 2019-09-30 572 2019-12-31 617 2020-03-31 618 2020-06-30 543 2020-09-30 697 2020-12-31 813 2021-03-31 844 2021-06-30 766 2021-09-30 740 2021-12-31 757 2022-03-31 806 2022-06-30 679 2022-09-30 828 2022-12-31 685 2023-03-31 1429 2023-06-30 1216 2023-09-30 1065