Quarter US dollars 2004-12-31 862 2005-03-31 849 2005-06-30 773 2005-09-30 727 2005-12-31 747 2006-03-31 718 2006-06-30 825 2006-09-30 758 2006-12-31 763 2007-03-31 565 2007-06-30 614 2007-09-30 632 2007-12-31 575 2008-03-31 656 2008-06-30 507 2008-09-30 435 2008-12-31 543 2009-03-31 486 2009-06-30 497 2009-09-30 218 2009-12-31 200 2010-03-31 202 2010-06-30 214 2010-09-30 140 2010-12-31 146 2011-03-31 228 2011-06-30 222 2011-09-30 115 2011-12-31 138 2012-03-31 144 2012-06-30 138 2012-09-30 136 2012-12-31 137 2013-03-31 111 2013-06-30 99 2013-09-30 96 2013-12-31 91 2014-03-31 90 2014-06-30 169 2014-09-30 123 2014-12-31 123 2015-03-31 107 2015-06-30 610 2015-09-30 218 2015-12-31 206 2016-03-31 194 2016-06-30 258 2016-09-30 244 2016-12-31 170 2017-03-31 206 2017-06-30 982 2017-09-30 1029 2017-12-31 1202 2018-03-31 1225 2018-06-30 1334 2018-09-30 1385 2018-12-31 1113 2019-03-31 1105 2019-06-30 1258 2019-09-30 1247 2019-12-31 1273 2020-03-31 1201 2020-06-30 1017 2020-09-30 1214 2020-12-31 1302 2021-03-31 1618 2021-06-30 2103 2021-09-30 2005 2021-12-31 2241 2022-03-31 3341 2022-06-30 2999 2022-09-30 2870 2022-12-31 3465 2023-03-31 3247 2023-06-30 3052 2023-09-30 3332