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_88 (Id VARCHAR)
### Question:
What is the 2000 number when the 1969 is 54.3, and the 1979 is less than 48.4?
### Answer:
SELECT SUM(2000) FROM table_name_88 WHERE 1969 = 54.3 AND 1979 < 48.4