Quarter US dollars 2004-12-31 102 2005-03-31 253 2005-06-30 593 2005-09-30 930 2005-12-31 601 2006-03-31 179 2006-06-30 324 2006-09-30 351 2006-12-31 315 2007-03-31 108 2007-06-30 211 2007-09-30 691 2007-12-31 944 2008-03-31 988 2008-06-30 788 2008-09-30 563 2008-12-31 968 2009-03-31 549 2009-06-30 1322 2009-09-30 1476 2009-12-31 1287 2010-03-31 1031 2010-06-30 1158 2010-09-30 553 2010-12-31 125 2011-03-31 385 2011-06-30 780 2011-09-30 207 2011-12-31 199 2012-03-31 344 2012-06-30 478 2012-09-30 304 2012-12-31 157 2013-03-31 137 2013-06-30 32 2013-09-30 47 2013-12-31 73 2014-03-31 343 2014-06-30 303 2014-09-30 292 2014-12-31 173 2015-03-31 233 2015-06-30 6 2015-09-30 68 2015-12-31 93 2016-03-31 111 2016-06-30 52 2016-09-30 77 2016-12-31 118 2017-03-31 75 2017-06-30 3 2017-09-30 43 2017-12-31 63 2018-03-31 36 2018-06-30 16 2018-09-30 42 2018-12-31 56 2019-03-31 77 2019-06-30 99 2019-09-30 18 2019-12-31 55 2020-03-31 21 2020-06-30 6 2020-09-30 40 2020-12-31 41 2021-03-31 8 2021-06-30 32 2021-09-30 46 2021-12-31 39 2022-03-31 5 2022-06-30 10 2022-09-30 37 2022-12-31 8 2023-03-31 119 2023-06-30 356 2023-09-30 166