The last PISA survey happened in 2015. The international report for PISA 2015 was released on 6 December 2016 by the OECD. The national reports for UK countries were also published on that day.
2015 National Reports
2012 National Reports
National reports from earlier PISA surveys are available for download at the following links:
To view NFER Summary briefings on PISA 2015 results click here.