user: Question: What was the average year during which the score was 270?
Columns: ['Year', 'Venue', 'Winner', 'Country', 'Score']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [2005.0, 'Arlandastad', 'David Patrick', 'Scotland', 272.0]
SQL:

assistant: SELECT AVG("Year") FROM "Table" WHERE "Score" = 270.0;