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_4 (year INTEGER, rank INTEGER)
### Question:
What is the sum of Year, when Rank is less than 19?
### Answer:
SELECT SUM(year) FROM table_name_4 WHERE rank < 19