Quarter US dollars 2004-12-31 142 2005-03-31 136 2005-06-30 90 2005-09-30 46 2008-03-31 115 2008-12-31 39 2009-09-30 232 2009-12-31 119 2010-03-31 261 2010-12-31 89 2012-06-30 226 2013-06-30 146 2014-09-30 71 2014-12-31 50 2015-03-31 13 2015-06-30 3 2015-09-30 12 2015-12-31 7 2016-03-31 27 2016-06-30 26 2016-09-30 23 2016-12-31 18 2017-03-31 4 2017-06-30 9 2017-09-30 40 2017-12-31 46 2018-03-31 32 2018-06-30 7 2018-09-30 44 2018-12-31 17 2019-03-31 25 2019-06-30 38 2019-09-30 108 2019-12-31 30 2020-03-31 22 2020-06-30 12 2020-09-30 32 2020-12-31 44 2021-03-31 26 2021-06-30 -3 2021-09-30 40 2021-12-31 8 2022-03-31 24 2022-06-30 4 2022-09-30 30 2022-12-31 14 2023-03-31 18 2023-06-30 -1 2023-09-30 23