Quarter US dollars 2004-12-31 219 2005-03-31 119 2005-06-30 47 2005-09-30 101 2005-12-31 53 2006-03-31 49 2006-06-30 104 2006-09-30 58 2006-12-31 65 2007-03-31 63 2007-06-30 60 2007-09-30 114 2007-12-31 133 2008-03-31 141 2008-06-30 96 2008-09-30 125 2008-12-31 109 2009-03-31 2650 2009-06-30 2826 2009-09-30 2776 2009-12-31 2808 2010-03-31 3256 2010-06-30 3238 2010-09-30 4671 2010-12-31 4794 2011-03-31 2191 2011-06-30 2238 2011-09-30 1527 2011-12-31 1308 2012-03-31 1266 2012-06-30 2554 2012-09-30 2363 2012-12-31 2087 2013-03-31 2881 2013-06-30 3469 2013-09-30 3351 2013-12-31 3223 2014-03-31 689 2014-06-30 465 2014-09-30 32 2014-12-31 918 2015-03-31 594 2015-06-30 933 2015-09-30 1763 2015-12-31 1455 2016-03-31 1199 2016-06-30 1188 2016-09-30 2167 2016-12-31 3290 2017-03-31 2803 2017-06-30 6221 2017-09-30 7368 2017-12-31 7152 2018-03-31 7168 2018-06-30 11248 2018-09-30 11640 2018-12-31 12774 2019-03-31 8735 2019-06-30 8636 2019-09-30 7314 2019-12-31 7745 2020-03-31 8218 2020-06-30 8198 2020-09-30 10446 2020-12-31 10971 2021-03-31 11161 2021-06-30 13642 2021-09-30 15635 2021-12-31 11369 2022-03-31 10480 2022-06-30 13088 2022-09-30 5156 2022-12-31 10458 2023-03-31 12774 2023-06-30 13924 2023-09-30 14741