Quarter US dollars 2004-12-31 113 2005-03-31 127 2005-06-30 93 2005-09-30 96 2005-12-31 127 2006-03-31 208 2006-06-30 198 2006-09-30 204 2006-12-31 339 2007-03-31 353 2007-06-30 323 2007-09-30 163 2007-12-31 332 2008-03-31 242 2008-06-30 424 2008-09-30 408 2008-12-31 443 2009-03-31 384 2009-06-30 329 2009-09-30 360 2009-12-31 349 2010-03-31 334 2010-06-30 81 2010-09-30 137 2010-12-31 47 2011-03-31 63 2011-06-30 59 2011-09-30 69 2011-12-31 74 2012-03-31 66 2012-06-30 72 2012-09-30 74 2012-12-31 63 2013-03-31 61 2013-06-30 58 2013-09-30 57 2013-12-31 45 2014-03-31 40 2014-06-30 39 2014-09-30 41 2014-12-31 47 2015-03-31 42 2015-06-30 35 2015-09-30 29 2015-12-31 33 2016-03-31 27 2016-06-30 19 2016-09-30 17 2016-12-31 18 2017-03-31 19 2017-06-30 31 2017-09-30 31 2017-12-31 38 2018-03-31 27 2018-06-30 16 2018-09-30 20 2018-12-31 27 2019-03-31 36 2019-06-30 28 2019-09-30 16 2019-12-31 13 2020-03-31 15 2020-06-30 7 2020-09-30 4 2020-12-31 11 2021-03-31 22 2021-06-30 3 2021-09-30 3 2021-12-31 1 2022-03-31 4 2022-06-30 1 2022-09-30 10 2022-12-31 22 2023-03-31 13 2023-06-30 18 2023-09-30 26