Quarter US dollars 2004-12-31 250 2005-03-31 246 2005-06-30 229 2005-09-30 237 2005-12-31 225 2006-03-31 220 2006-06-30 231 2006-09-30 230 2006-12-31 303 2007-03-31 88 2007-06-30 191 2007-09-30 147 2007-12-31 72 2008-03-31 44 2008-06-30 28 2008-09-30 34 2008-12-31 10 2009-03-31 4 2009-06-30 5 2009-09-30 24 2009-12-31 0 2010-03-31 3 2010-06-30 15 2010-09-30 14 2010-12-31 103 2011-03-31 0 2011-06-30 0 2011-09-30 0 2011-12-31 2 2012-03-31 0 2012-06-30 0 2012-09-30 0 2012-12-31 5 2013-03-31 5 2013-06-30 5 2013-09-30 5 2013-12-31 12 2014-03-31 12 2014-06-30 0 2014-09-30 23 2014-12-31 8 2015-03-31 1 2015-06-30 90 2015-09-30 124 2015-12-31 80 2016-03-31 831 2016-06-30 95 2016-09-30 140 2016-12-31 124 2017-03-31 105 2017-06-30 66 2017-09-30 58 2017-12-31 57 2018-03-31 55 2018-06-30 78 2018-09-30 95 2018-12-31 146 2019-03-31 142 2019-06-30 149 2019-09-30 206 2019-12-31 169 2020-03-31 140 2020-06-30 136 2020-09-30 118 2020-12-31 124 2021-03-31 105 2021-06-30 108 2021-09-30 81 2021-12-31 80 2022-03-31 176 2022-06-30 67 2022-09-30 28 2022-12-31 30 2023-03-31 15 2023-06-30 13 2023-09-30 11