user: Question: What is the average 2006 value with a 2010 value of 417.9 and a 2011 value greater than 426.7?
Columns: ['Geographic Unit', '2006', '2007', '2008', '2009', '2010', '2011']
Types: ['text', 'real', 'real', 'real', 'real', 'real', 'real']
Sample row: ['Banbridge', 280.4, 308.1, 294.0, 324.8, 271.7, 280.5]
SQL:

assistant: SELECT AVG("2006") FROM "Table" WHERE "2010" = 417.9 AND "2011" > 426.7;