user: Question: What is the average 2007 value with a 2009 value greater than 2.8, a 4.9 in 2010, and a 2006 less than 2.5?
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("2007") FROM "Table" WHERE "2009" > 2.8 AND "2010" = 4.9 AND "2006" < 2.5;