user: Question: What year was the average attendance 80,388?
Columns: ['Year', 'Opponent', 'Competition', 'Score', 'Venue', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1972.0, 'Eastern Suburbs Roosters', 'NSWRFL', '19-14', 'Sydney Cricket Ground', '54,537']
SQL:

assistant: SELECT "Year" FROM "Table" WHERE "Attendance" = '80,388';