Quarter US dollars 2004-12-31 52 2005-03-31 123 2005-06-30 88 2005-09-30 81 2005-12-31 91 2006-03-31 92 2006-06-30 92 2006-09-30 78 2006-12-31 98 2007-03-31 222 2007-06-30 229 2007-09-30 194 2007-12-31 149 2008-03-31 161 2008-06-30 163 2008-09-30 144 2008-12-31 137 2009-03-31 132 2009-06-30 87 2009-09-30 152 2009-12-31 74 2010-03-31 3 2010-06-30 10 2010-09-30 54 2010-12-31 45 2011-03-31 51 2011-06-30 19 2011-09-30 42 2011-12-31 15 2012-03-31 19 2012-06-30 6 2012-09-30 11 2012-12-31 26 2013-03-31 65 2013-06-30 46 2013-09-30 60 2013-12-31 18 2014-03-31 -40 2014-06-30 51 2014-09-30 57 2014-12-31 50 2015-03-31 61 2015-06-30 33 2015-09-30 77 2015-12-31 58 2016-03-31 7 2016-06-30 99 2016-09-30 77 2016-12-31 11 2017-03-31 9 2017-06-30 -17 2017-09-30 13 2017-12-31 14 2018-03-31 46 2018-06-30 66 2018-09-30 -20 2018-12-31 27 2019-03-31 53 2019-06-30 74 2019-09-30 26 2019-12-31 32 2020-03-31 32 2020-06-30 46 2020-09-30 25 2020-12-31 -1 2021-03-31 11 2021-06-30 41 2021-09-30 -11 2021-12-31 -5 2022-03-31 -37 2022-06-30 -34 2022-09-30 -12 2022-12-31 -14 2023-03-31 -23 2023-06-30 14 2023-09-30 0