Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_31 (Id VARCHAR)
### Question:
What 1973 has a 1978 of 75%?
### Answer:
SELECT 1973 FROM table_name_31 WHERE 1978 = "75%"