0 Aberffraw sample assessment for 2012-W19 Aberffraw sample assessment for 2012-W20 Aberffraw sample assessment for 2012-W21 Aberffraw sample assessment for 2012-W23 Aberffraw sample assessment for 2012-W24 Aberffraw sample assessment for 2012-W25 Aberffraw sample assessment for 2012-W26 Aberffraw sample assessment for 2012-W28 Aberffraw sample assessment for 2012-W30 Aberffraw sample assessment for 2012-W31 10 1