Quarter US dollars 2004-12-31 952 2005-03-31 1199 2005-06-30 954 2005-09-30 914 2005-12-31 673 2006-03-31 758 2006-06-30 588 2006-09-30 331 2006-12-31 319 2007-03-31 380 2007-06-30 373 2007-09-30 377 2007-12-31 559 2008-03-31 710 2008-06-30 231 2008-09-30 244 2008-12-31 295 2009-03-31 275 2009-06-30 270 2009-09-30 272 2009-12-31 262 2010-03-31 235 2010-06-30 236 2010-09-30 356 2010-12-31 344 2011-03-31 346 2011-06-30 337 2011-09-30 308 2011-12-31 291 2012-03-31 270 2012-06-30 207 2012-09-30 195 2012-12-31 171 2013-03-31 159 2013-06-30 114 2013-09-30 108 2013-12-31 114 2014-03-31 103 2014-06-30 68 2014-09-30 62 2014-12-31 55 2015-03-31 12 2015-06-30 14 2015-09-30 11 2015-12-31 10 2016-03-31 7 2016-06-30 5 2016-09-30 6 2016-12-31 7 2017-03-31 6 2017-06-30 5 2017-09-30 5 2017-12-31 4 2018-03-31 0 2018-06-30 1 2018-09-30 9 2018-12-31 1 2019-03-31 4 2019-06-30 6 2019-09-30 2 2019-12-31 1 2020-03-31 1 2020-06-30 1 2020-09-30 4 2020-12-31 1 2021-03-31 3 2021-06-30 4 2021-09-30 3 2021-12-31 3 2022-03-31 3 2022-06-30 2 2022-09-30 2 2022-12-31 2 2023-03-31 2 2023-06-30 2 2023-09-30 1