What is the 2002 average when 2003 is less than 13.2, 2006 is more than 12.1, 2011 is more than 13.5 and 2001 is 11.5?
SELECT AVG 2002 FROM table WHERE 2003 < 13.2 AND 2006 > 12.1 AND 2011 > 13.5 AND 2001 = 11.5