Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_13 ( average INTEGER, wickets VARCHAR, matches VARCHAR )

### Question ###
What is the average of someone with more than 19 wickets and less than 16 matches?

### Accurate SQL ###

SELECT AVG(average) FROM table_name_13 WHERE wickets > 19 AND matches < 16