Quarter US dollars 2004-12-31 2031 2005-03-31 2405 2005-06-30 357 2005-09-30 2717 2005-12-31 2714 2006-03-31 3176 2006-06-30 3305 2006-09-30 3697 2006-12-31 1149 2007-03-31 1047 2007-06-30 1382 2007-09-30 2050 2007-12-31 2779 2008-03-31 2773 2008-06-30 2766 2008-09-30 3322 2008-12-31 3184 2009-03-31 2952 2009-06-30 9171 2009-09-30 9461 2009-12-31 9443 2010-03-31 9147 2010-06-30 9193 2010-09-30 9477 2010-12-31 9146 2011-03-31 9052 2011-06-30 9886 2011-09-30 8897 2011-12-31 7953 2012-03-31 8221 2012-06-30 8282 2012-09-30 8888 2012-12-31 9730 2013-03-31 10414 2013-06-30 8387 2013-09-30 11111 2013-12-31 11685 2014-03-31 12238 2014-06-30 12188 2014-09-30 12824 2014-12-31 13086 2015-03-31 12782 2015-06-30 10641 2015-09-30 11654 2015-12-31 11415 2016-03-31 11898 2016-06-30 11051 2016-09-30 16997 2016-12-31 14217 2017-03-31 15400 2017-06-30 12361 2017-09-30 11912 2017-12-31 11007 2018-03-31 18059 2018-06-30 18144 2018-09-30 17351 2018-12-31 17942 2019-03-31 19987 2019-06-30 18592 2019-09-30 17412 2019-12-31 17061 2020-03-31 19599 2020-06-30 17337 2020-09-30 19572 2020-12-31 19967 2021-03-31 26025 2021-06-30 27526 2021-09-30 27873 2021-12-31 30071 2022-03-31 26071 2022-06-30 26482 2022-09-30 25353 2022-12-31 29209 2023-03-31 31391 2023-06-30 33352 2023-09-30 35504