Old exam sets December 2002 December 2004 November 2005 December 2006 December 2007 December 2008 December 2009 December 2010 June 2011 December 2011 December 2012, solutions August 2013 December 2013 December 2014, solutions December 2015, problem 1 and problem 3 solutions December 2016 December 2017 November 2018, solutions November 2019, solutions November 2020, solutions December 2022 December 2023 (including solutions) December 2024, solutions