Quarter US dollars 2004-12-31 52 2005-03-31 25 2005-06-30 57 2005-09-30 42 2005-12-31 50 2006-03-31 243 2006-06-30 248 2006-09-30 359 2006-12-31 205 2007-03-31 284 2007-06-30 329 2007-09-30 114 2007-12-31 104 2008-03-31 121 2008-06-30 151 2008-09-30 435 2008-12-31 86 2009-03-31 83 2009-06-30 87 2009-09-30 53 2009-12-31 42 2010-03-31 70 2010-06-30 75 2010-09-30 71 2010-12-31 66 2011-03-31 59 2011-06-30 90 2011-09-30 69 2011-12-31 60 2012-03-31 38 2012-06-30 47 2012-09-30 29 2012-12-31 32 2013-03-31 24 2013-06-30 79 2013-09-30 31 2013-12-31 28 2014-03-31 18 2014-06-30 24 2014-09-30 23 2014-12-31 28 2015-03-31 36 2015-06-30 27 2015-09-30 17 2015-12-31 15 2016-03-31 12 2016-06-30 21 2016-09-30 1356 2016-12-31 1272 2017-03-31 1308 2017-06-30 32 2017-09-30 24 2017-12-31 19 2018-03-31 31 2018-06-30 25 2018-09-30 20 2018-12-31 19 2019-03-31 17 2019-06-30 25 2019-09-30 27 2019-12-31 24 2020-03-31 22 2020-06-30 21 2020-09-30 22 2020-12-31 18 2021-03-31 28 2021-06-30 40 2021-09-30 35 2021-12-31 35 2022-03-31 39 2022-06-30 40 2022-09-30 45 2022-12-31 42 2023-03-31 43 2023-06-30 48 2023-09-30 45