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 (points VARCHAR, year VARCHAR, chassis VARCHAR)
### Question:
How many points are there for a Mclaren m23 chassis later than 1972?
### Answer:
SELECT COUNT(points) FROM table_name_20 WHERE year > 1972 AND chassis = "mclaren m23"