Quarter US dollars 2004-12-31 764 2005-03-31 733 2005-06-30 792 2005-09-30 771 2005-12-31 717 2006-03-31 872 2006-06-30 884 2006-09-30 880 2006-12-31 879 2007-03-31 881 2007-06-30 963 2007-09-30 994 2007-12-31 1085 2008-03-31 1206 2008-06-30 1142 2008-09-30 1135 2008-12-31 1594 2009-03-31 1584 2009-06-30 1640 2009-09-30 1602 2009-12-31 1797 2010-03-31 1599 2010-06-30 1270 2010-09-30 1572 2010-12-31 1558 2011-03-31 1290 2011-06-30 1355 2011-09-30 1764 2011-12-31 2287 2012-03-31 2316 2012-06-30 1820 2012-09-30 2130 2012-12-31 1877 2013-03-31 1782 2013-06-30 1793 2013-09-30 1726 2013-12-31 1633 2014-03-31 1649 2014-06-30 1346 2014-09-30 1281 2014-12-31 1083 2015-03-31 1160 2015-06-30 1225 2015-09-30 1133 2015-12-31 1103 2016-03-31 1387 2016-06-30 1625 2016-09-30 1580 2016-12-31 1382 2017-03-31 1097 2017-06-30 1393 2017-09-30 1413 2017-12-31 1306 2018-03-31 1824 2018-06-30 1500 2018-09-30 1644 2018-12-31 1622 2019-03-31 1502 2019-06-30 1308 2019-09-30 1435 2019-12-31 1528 2020-03-31 1652 2020-06-30 1798 2020-09-30 1720 2020-12-31 1403 2021-03-31 1371 2021-06-30 1375 2021-09-30 936 2021-12-31 1201 2022-03-31 1091 2022-06-30 1166 2022-09-30 842 2022-12-31 749 2023-03-31 947 2023-06-30 1032 2023-09-30 1060