Quarter US dollars 2004-12-31 31 2005-03-31 32 2005-06-30 32 2005-09-30 41 2005-12-31 38 2006-03-31 38 2006-06-30 63 2006-09-30 11 2006-12-31 82 2007-03-31 43 2007-06-30 94 2007-09-30 10 2007-12-31 60 2008-03-31 24 2008-06-30 24 2008-09-30 75 2008-12-31 35 2009-03-31 26 2009-06-30 23 2009-09-30 24 2009-12-31 18 2010-03-31 17 2010-06-30 13 2010-09-30 11 2010-12-31 13 2011-03-31 74 2011-06-30 92 2011-09-30 36 2011-12-31 56 2012-03-31 213 2012-06-30 127 2012-09-30 52 2012-12-31 346 2013-03-31 348 2013-06-30 284 2013-09-30 219 2013-12-31 236 2014-03-31 98 2014-06-30 111 2014-09-30 24 2014-12-31 86 2015-03-31 42 2015-06-30 39 2015-09-30 53 2015-12-31 62 2016-03-31 29 2016-06-30 51 2016-09-30 66 2016-12-31 32 2017-03-31 14 2017-06-30 19 2017-09-30 48 2017-12-31 36 2018-03-31 24 2018-06-30 67 2018-09-30 25 2018-12-31 31 2019-03-31 35 2019-06-30 25 2019-09-30 25 2019-12-31 29 2020-03-31 66 2020-06-30 36 2020-09-30 59 2020-12-31 49 2021-03-31 63 2021-06-30 69 2021-09-30 39 2021-12-31 58 2022-03-31 155 2022-06-30 44 2022-09-30 25 2022-12-31 23 2023-03-31 20 2023-06-30 41 2023-09-30 34