Quarter US dollars 2004-12-31 647 2005-03-31 11 2005-06-30 4 2005-09-30 2 2005-12-31 2 2006-03-31 2 2006-06-30 0 2006-09-30 2 2006-12-31 4 2007-03-31 2 2007-06-30 4 2007-09-30 2 2007-12-31 4 2008-03-31 4 2008-06-30 4 2008-09-30 4 2008-12-31 4 2009-03-31 3 2009-06-30 2 2009-09-30 11 2009-12-31 15 2010-03-31 36 2010-06-30 28 2010-09-30 32 2010-12-31 30 2011-03-31 61 2011-06-30 51 2011-09-30 34 2011-12-31 39 2012-03-31 48 2012-06-30 60 2012-09-30 90 2012-12-31 105 2013-03-31 120 2013-06-30 137 2013-09-30 58 2013-12-31 74 2014-03-31 125 2014-06-30 127 2014-09-30 75 2014-12-31 64 2015-03-31 9 2015-06-30 8 2015-09-30 18 2015-12-31 6 2016-03-31 6 2016-06-30 5 2016-09-30 6 2016-12-31 6 2017-03-31 19 2017-06-30 3 2017-09-30 1 2017-12-31 80 2018-03-31 65 2018-06-30 104 2018-09-30 81 2018-12-31 80 2019-03-31 83 2019-06-30 90 2019-09-30 87 2019-12-31 89 2020-03-31 53 2020-06-30 63 2020-09-30 39 2020-12-31 52 2021-03-31 44 2021-06-30 50 2021-09-30 42 2021-12-31 40 2022-03-31 36 2022-06-30 104 2022-09-30 86 2022-12-31 67 2023-03-31 115 2023-06-30 83 2023-09-30 99