Quarter US dollars 2004-12-31 1117 2005-03-31 1312 2005-06-30 704 2005-09-30 2519 2005-12-31 415 2006-03-31 576 2006-06-30 1062 2006-09-30 669 2006-12-31 687 2007-03-31 806 2007-06-30 1045 2007-09-30 1273 2007-12-31 705 2008-03-31 930 2008-06-30 1230 2008-09-30 1019 2008-12-31 959 2009-03-31 328 2009-06-30 581 2009-09-30 2117 2009-12-31 723 2010-03-31 654 2010-06-30 2439 2010-09-30 3436 2010-12-31 3327 2011-03-31 4285 2011-06-30 5074 2011-09-30 2181 2011-12-31 1517 2012-03-31 1237 2012-06-30 1214 2012-09-30 1655 2012-12-31 2144 2013-03-31 1618 2013-06-30 746 2013-09-30 609 2013-12-31 1254 2014-03-31 877 2014-06-30 997 2014-09-30 1260 2014-12-31 1467 2015-03-31 999 2015-06-30 985 2015-09-30 1428 2015-12-31 1403 2016-03-31 1846 2016-06-30 537 2016-09-30 616 2016-12-31 535 2017-03-31 462 2017-06-30 996 2017-09-30 876 2017-12-31 944 2018-03-31 813 2018-06-30 775 2018-09-30 1283 2018-12-31 635 2019-03-31 589 2019-06-30 1063 2019-09-30 1270 2019-12-31 680 2020-03-31 889 2020-06-30 1100 2020-09-30 1520 2020-12-31 764 2021-03-31 424 2021-06-30 655 2021-09-30 823 2021-12-31 1193 2022-03-31 1082 2022-06-30 1529 2022-09-30 2172 2022-12-31 1362 2023-03-31 2434 2023-06-30 2623 2023-09-30 3454