What's the average attendance of the leagues in the season of 2013?
CREATE TABLE table_10815352_1 (average_attendance INTEGER, season VARCHAR)
SELECT MIN(average_attendance) FROM table_10815352_1 WHERE season = "2013"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_10815352_1 (average_attendance INTEGER, season VARCHAR) Question: What's the average attendance of the leagues in the season of 2013? [/INST] SELECT MIN(average_attendance) FROM table_10815352_1 WHERE season = "2013" </s>