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_20 (year_won INTEGER, player VARCHAR, to_par VARCHAR)
### Question:
What is the average year Rich Beem had a to par less than 17?
### Answer:
SELECT AVG(year_won) FROM table_name_20 WHERE player = "rich beem" AND to_par < 17