Quarter US dollars 2004-12-31 46 2005-03-31 25 2005-06-30 13 2005-09-30 35 2005-12-31 118 2006-03-31 260 2006-06-30 61 2006-09-30 28 2006-12-31 29 2007-03-31 86 2007-06-30 62 2007-09-30 29 2007-12-31 129 2008-03-31 68 2008-06-30 42 2008-09-30 59 2008-12-31 65 2009-03-31 11 2009-06-30 3 2009-09-30 24 2009-12-31 47 2010-03-31 55 2010-06-30 111 2010-09-30 87 2010-12-31 64 2011-03-31 90 2011-06-30 43 2011-09-30 70 2011-12-31 59 2012-03-31 8 2012-06-30 13 2012-09-30 136 2012-12-31 222 2013-03-31 56 2013-06-30 17 2013-09-30 97 2013-12-31 99 2014-03-31 100 2014-06-30 82 2014-09-30 104 2014-12-31 52 2015-03-31 16 2015-06-30 52 2015-09-30 68 2015-12-31 1 2016-03-31 14 2016-06-30 8 2016-09-30 1 2016-12-31 0 2017-03-31 19 2017-06-30 12 2017-09-30 15 2017-12-31 12 2018-03-31 14 2018-06-30 40 2018-09-30 13 2018-12-31 1 2019-03-31 14 2019-06-30 17 2019-09-30 37 2019-12-31 52 2020-03-31 31 2020-06-30 49 2020-09-30 45 2020-12-31 106 2021-03-31 88 2021-06-30 86 2021-09-30 28 2021-12-31 92 2022-03-31 64 2022-06-30 45 2022-09-30 34 2022-12-31 58 2023-03-31 17 2023-06-30 16 2023-09-30 30