Quarter US dollars 2004-12-31 121 2005-03-31 134 2005-06-30 165 2005-09-30 186 2005-12-31 -1334 2006-03-31 -3460 2006-06-30 -5354 2006-09-30 -6029 2006-12-31 -7908 2007-03-31 -10285 2007-06-30 -12696 2007-09-30 -14443 2007-12-31 -17651 2008-03-31 -18903 2008-06-30 -22942 2008-09-30 -8622 2008-12-31 -9681 2009-03-31 -7777 2009-06-30 -8071 2009-09-30 -1371 2009-12-31 -2067 2010-03-31 -3598 2010-06-30 -4127 2010-09-30 5 2010-12-31 6 2011-03-31 192 2011-06-30 156 2011-09-30 -31 2011-12-31 -2 2012-03-31 10 2012-06-30 124 2012-09-30 5 2012-12-31 173 2013-03-31 21 2013-06-30 39 2013-09-30 55 2013-12-31 23 2014-03-31 22 2014-06-30 14 2014-09-30 55 2014-12-31 31 2015-03-31 -25 2015-06-30 8 2015-09-30 6 2015-12-31 -24 2016-03-31 -23 2016-06-30 -28 2016-09-30 6 2016-12-31 16 2017-03-31 44 2017-06-30 34 2017-09-30 32 2017-12-31 22 2018-03-31 -1 2018-06-30 -1 2018-09-30 0 2018-12-31 -1 2019-03-31 29 2019-06-30 24 2019-09-30 23 2019-12-31 24 2020-03-31 40 2020-06-30 -1 2020-09-30 460 2020-12-31 486 2021-03-31 451 2021-06-30 488 2021-09-30 54 2021-12-31 611 2022-03-31 1056 2022-06-30 693 2022-09-30 781 2022-12-31 932 2023-03-31 966 2023-06-30 1063 2023-09-30 1100