Quarter US dollars 2004-12-31 4 2005-03-31 2 2005-06-30 -2 2005-09-30 -7 2005-12-31 -5 2006-03-31 -10 2006-06-30 2 2006-09-30 0 2006-12-31 -2 2007-03-31 24 2007-06-30 114 2007-09-30 165 2007-12-31 44 2008-03-31 36 2008-06-30 -14 2008-09-30 0 2008-12-31 33 2009-03-31 30 2009-06-30 -15 2009-09-30 -26 2009-12-31 -18 2010-03-31 -17 2010-06-30 -31 2010-09-30 -16 2010-12-31 -14 2011-03-31 -14 2011-06-30 -10 2011-09-30 -47 2011-12-31 -11 2012-03-31 -10 2012-06-30 -9 2012-09-30 -6 2012-12-31 -40 2013-03-31 -26 2013-06-30 -46 2013-09-30 -45 2013-12-31 -43 2014-03-31 -33 2014-06-30 -29 2014-09-30 -28 2014-12-31 -23 2015-03-31 -22 2015-06-30 -20 2015-09-30 -18 2015-12-31 -18 2016-03-31 0 2016-06-30 -39 2016-09-30 5 2016-12-31 -63 2017-03-31 -181 2017-06-30 0 2017-09-30 0 2017-12-31 0 2018-03-31 0 2018-06-30 0 2018-09-30 1 2018-12-31 0 2019-03-31 0 2019-06-30 0 2019-09-30 0 2019-12-31 0 2020-03-31 0 2020-06-30 0 2020-09-30 -125 2020-12-31 0 2021-03-31 0 2021-06-30 0 2021-09-30 0 2021-12-31 0 2022-03-31 0 2022-06-30 0 2022-09-30 0 2022-12-31 0 2023-03-31 0 2023-06-30 0 2023-09-30 -99