Quarter US dollars 2004-12-31 83637 2005-03-31 91074 2005-06-30 94583 2005-09-30 96182 2005-12-31 109586 2006-03-31 138885 2006-06-30 158179 2006-09-30 168179 2006-12-31 164541 2007-03-31 174363 2007-06-30 148169 2007-09-30 197045 2007-12-31 192661 2008-03-31 201771 2008-06-30 193169 2008-09-30 193866 2008-12-31 195115 2009-03-31 201300 2009-06-30 186989 2009-09-30 180697 2009-12-31 175576 2010-03-31 189815 2010-06-30 189688 2010-09-30 186627 2010-12-31 174945 2011-03-31 180695 2011-06-30 169662 2011-09-30 189687 2011-12-31 187273 2012-03-31 170955 2012-06-30 145729 2012-09-30 151166 2012-12-31 144864 2013-03-31 122681 2013-06-30 144772 2013-09-30 144765 2013-12-31 138007 2014-03-31 136062 2014-06-30 132387 2014-09-30 124077 2014-12-31 137432 2015-03-31 132080 2015-06-30 126611 2015-09-30 134966 2015-12-31 137434 2016-03-31 121005 2016-06-30 114602 2016-09-30 103618 2016-12-31 96940 2017-03-31 105649 2017-06-30 125606 2017-09-30 134177 2017-12-31 146642 2018-03-31 152167 2018-06-30 137198 2018-09-30 156783 2018-12-31 148590 2019-03-31 172586 2019-06-30 184982 2019-09-30 174386 2019-12-31 179163 2020-03-31 145368 2020-06-30 166195 2020-09-30 164751 2020-12-31 183598 2021-03-31 179537 2021-06-30 185830 2021-09-30 222080 2021-12-31 247190 2022-03-31 198257 2022-06-30 175795 2022-09-30 169354 2022-12-31 223049 2023-03-31 231098 2023-06-30 266936 2023-09-30 269111