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_91 (quantity INTEGER, numbers VARCHAR)
### Question:
What is the quantity of the item with the numbers of 29-36?
### Answer:
SELECT AVG(quantity) FROM table_name_91 WHERE numbers = "29-36"