Quarter US dollars 2007-06-30 243 2007-09-30 218 2007-12-31 219 2008-03-31 111 2008-06-30 163 2008-09-30 72 2008-12-31 68 2009-03-31 70 2009-06-30 101 2009-09-30 98 2009-12-31 110 2010-03-31 83 2010-06-30 83 2010-09-30 61 2010-12-31 62 2011-03-31 71 2011-06-30 94 2011-09-30 71 2011-12-31 71 2012-03-31 57 2012-06-30 37 2012-09-30 49 2012-12-31 99 2013-03-31 64 2013-06-30 58 2013-09-30 60 2013-12-31 67 2014-03-31 61 2014-06-30 82 2014-09-30 41 2014-12-31 38 2015-03-31 29 2015-06-30 55 2015-09-30 25 2015-12-31 24 2016-03-31 26 2016-06-30 25 2016-09-30 26 2016-12-31 28 2017-03-31 34 2017-06-30 26 2017-09-30 33 2017-12-31 7 2018-03-31 17 2018-06-30 3 2018-09-30 8 2018-12-31 9 2019-03-31 2 2019-06-30 5 2019-09-30 6 2019-12-31 6 2020-03-31 17 2020-06-30 16 2020-09-30 2 2020-12-31 20 2021-03-31 13 2021-06-30 10 2021-09-30 9 2021-12-31 11 2022-03-31 22 2022-06-30 7 2022-09-30 11 2022-12-31 8 2023-03-31 17 2023-06-30 5 2023-09-30 14