Quarter US dollars 2004-12-31 25 2005-03-31 21 2005-06-30 0 2005-09-30 14 2005-12-31 9 2006-03-31 19 2006-06-30 28 2006-09-30 21 2006-12-31 31 2007-03-31 27 2007-06-30 24 2007-09-30 14 2007-12-31 34 2008-03-31 89 2008-06-30 62 2008-09-30 61 2008-12-31 20 2009-03-31 7 2009-06-30 8 2009-09-30 13 2009-12-31 8 2010-03-31 9 2010-06-30 6 2010-09-30 14 2010-12-31 11 2011-03-31 2 2011-06-30 13 2011-09-30 3 2011-12-31 3 2012-03-31 3 2012-06-30 6 2012-09-30 2 2012-12-31 3 2013-03-31 17 2013-06-30 20 2013-09-30 5 2013-12-31 3 2014-03-31 30 2014-06-30 10 2014-09-30 16 2014-12-31 16 2015-03-31 7 2015-06-30 2 2015-09-30 3 2015-12-31 1 2016-03-31 7 2016-06-30 7 2016-09-30 5 2016-12-31 1 2017-03-31 1 2017-06-30 1 2017-09-30 20 2017-12-31 3 2018-03-31 11 2018-06-30 8 2018-09-30 26 2018-12-31 5 2019-03-31 16 2019-06-30 4 2019-09-30 0 2019-12-31 12 2020-03-31 17 2020-06-30 6 2020-09-30 3 2020-12-31 3 2021-03-31 0 2021-06-30 6 2021-09-30 15 2021-12-31 5 2022-03-31 3 2022-06-30 6 2022-09-30 10 2022-12-31 8 2023-03-31 7 2023-06-30 4 2023-09-30 10