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_23 (average INTEGER, tally VARCHAR, total VARCHAR)
### Question:
Which Average has a Tally of 2-12, and a Total larger than 18?
### Answer:
SELECT AVG(average) FROM table_name_23 WHERE tally = "2-12" AND total > 18