Quarter Millions of US Dollars 2012-07-01 102 2012-10-01 102 2013-01-01 0 2013-04-01 0 2013-07-01 0 2013-10-01 0 2014-01-01 0 2014-04-01 0 2014-07-01 0 2014-10-01 0 2015-01-01 0 2015-04-01 0 2015-07-01 0 2015-10-01 0 2016-01-01 0 2016-04-01 0 2016-07-01 0 2016-10-01 0 2017-01-01 575 2017-04-01 575 2017-07-01 575 2017-10-01 575 2018-01-01 0 2018-04-01 0