user: ### NOW ANSWER:
Question: Which World Rank happened in 1977?
Columns: ['Year', 'Result', 'World Rank', 'Location', 'Date']
Types: ['real', 'real', 'text', 'text', 'text']
Sample row: [1973.0, 45.5, '9th', 'Bakersfield', 'Jun 16']
SQL:

assistant: SELECT "World Rank" FROM "Table" WHERE "Year" = 1977.0;