user: Question: What was the average round score of the player who won in 1978?
Columns: ['Player', 'Country', 'Year(s) won', 'Total', 'To par']
Types: ['text', 'text', 'text', 'real', 'real']
Sample row: ['Bob Tway', 'United States', '1986', 144.0, 2.0]
SQL:

assistant: SELECT AVG("Total") FROM "Table" WHERE "Year(s) won" = '1978';