Quarter US dollars 2004-12-31 25 2005-03-31 284 2005-06-30 75 2005-09-30 325 2005-12-31 338 2006-03-31 560 2006-06-30 538 2006-09-30 389 2006-12-31 528 2007-03-31 598 2007-06-30 584 2007-09-30 803 2007-12-31 918 2008-03-31 783 2008-06-30 820 2008-09-30 964 2008-12-31 155 2009-03-31 867 2009-06-30 1018 2009-09-30 179 2009-12-31 977 2010-03-31 1436 2010-06-30 268 2010-09-30 611 2010-12-31 673 2011-03-31 710 2011-06-30 692 2011-09-30 776 2011-12-31 796 2012-03-31 765 2012-06-30 767 2012-09-30 793 2012-12-31 14223 2013-03-31 15213 2013-06-30 15378 2013-09-30 12876 2013-12-31 9094 2014-03-31 1064 2014-06-30 1026 2014-09-30 1096 2014-12-31 930 2015-03-31 398 2015-06-30 366 2015-09-30 39 2015-12-31 40 2016-03-31 42 2016-06-30 40 2016-09-30 42 2016-12-31 41 2017-03-31 41 2017-06-30 44 2017-09-30 46 2017-12-31 49 2018-03-31 49 2018-06-30 49 2018-09-30 47 2018-12-31 42 2019-03-31 40 2019-06-30 14 2019-09-30 14 2019-12-31 15 2020-03-31 15 2020-06-30 0 2020-09-30 0 2020-12-31 0 2021-03-31 0 2021-06-30 0 2021-09-30 0 2021-12-31 0 2022-03-31 0 2022-06-30 0 2022-09-30 0 2022-12-31 0 2023-03-31 0 2023-06-30 0 2023-09-30 0