2008-12-31Z 2008-12-31Z 2 Skinburness sample assessment for 2008-W20 10 false 2 2008-12-31Z false 11 2008-12-31Z 10 Skinburness sample assessment for 2008-W27 2 10 false 2 Skinburness sample assessment for 2009-W21 2 2009-12-31Z 2009-12-31Z 6 2011-05-12Z 2011-05-12Z 2 Skinburness sample assessment for 2011-W18 10 false 1 10 0