Quarter US dollars 2004-12-31 63 2005-03-31 76 2005-06-30 99 2005-09-30 104 2005-12-31 139 2006-03-31 144 2006-06-30 141 2006-09-30 108 2006-12-31 129 2007-03-31 226 2007-06-30 331 2007-09-30 5261 2007-12-31 6518 2008-03-31 6551 2008-06-30 6993 2008-09-30 3760 2008-12-31 3699 2009-03-31 3540 2009-06-30 3636 2009-09-30 2704 2009-12-31 2219 2010-03-31 2650 2010-06-30 2515 2010-09-30 3231 2010-12-31 4319 2011-03-31 4708 2011-06-30 4529 2011-09-30 4988 2011-12-31 4048 2012-03-31 4005 2012-06-30 3672 2012-09-30 3170 2012-12-31 3722 2013-03-31 6895 2013-06-30 6003 2013-09-30 5012 2013-12-31 3891 2014-03-31 3378 2014-06-30 3433 2014-09-30 418 2014-12-31 289 2015-03-31 340 2015-06-30 308 2015-09-30 326 2015-12-31 279 2016-03-31 230 2016-06-30 231 2016-09-30 390 2016-12-31 416 2017-03-31 473 2017-06-30 440 2017-09-30 562 2017-12-31 936 2018-03-31 887 2018-06-30 3872 2018-09-30 3953 2018-12-31 5511 2019-03-31 5890 2019-06-30 6213 2019-09-30 6334 2019-12-31 6218 2020-03-31 6333 2020-06-30 1067 2020-09-30 1193 2020-12-31 313 2021-03-31 371 2021-06-30 413 2021-09-30 498 2021-12-31 406 2022-03-31 537 2022-06-30 494 2022-09-30 487 2022-12-31 415 2023-03-31 441 2023-06-30 445 2023-09-30 456