Quarter US dollars 2004-12-31 27 2005-03-31 38 2005-06-30 25 2005-09-30 30 2005-12-31 22 2006-03-31 35 2006-06-30 385 2006-09-30 41 2006-12-31 98 2007-03-31 29 2007-06-30 32 2007-09-30 37 2007-12-31 50 2008-03-31 52 2008-06-30 64 2008-09-30 55 2008-12-31 58 2009-03-31 96 2009-06-30 41 2009-09-30 155 2009-12-31 89 2010-03-31 73 2010-06-30 15 2010-09-30 61 2010-12-31 55 2011-03-31 59 2011-06-30 55 2011-09-30 61 2011-12-31 71 2012-03-31 53 2012-06-30 88 2012-09-30 16 2012-12-31 65 2013-03-31 123 2013-06-30 12 2013-09-30 13 2013-12-31 8 2014-03-31 18 2014-06-30 21 2014-09-30 23 2014-12-31 25 2015-03-31 24 2015-06-30 31 2015-09-30 91 2015-12-31 406 2016-03-31 613 2016-06-30 114 2016-09-30 394 2016-12-31 17 2017-03-31 562 2017-06-30 425 2017-09-30 13 2017-12-31 73 2018-03-31 10 2018-06-30 70 2018-09-30 518 2018-12-31 18 2019-03-31 792 2019-06-30 719 2019-09-30 277 2019-12-31 336 2020-03-31 17 2020-06-30 25 2020-09-30 968 2020-12-31 632 2021-03-31 168 2021-06-30 286 2021-09-30 384 2021-12-31 1092 2022-03-31 1179 2022-06-30 1459 2022-09-30 771 2022-12-31 862 2023-03-31 576 2023-06-30 1009 2023-09-30 42