How many Antonov An-2 Colt aircraft are in service?
CREATE TABLE table_name_37 (in_service INTEGER, aircraft VARCHAR)
SELECT AVG(in_service) FROM table_name_37 WHERE aircraft = "antonov an-2 colt"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_37 (in_service INTEGER, aircraft VARCHAR) Question: How many Antonov An-2 Colt aircraft are in service? [/INST] SELECT AVG(in_service) FROM table_name_37 WHERE aircraft = "antonov an-2 colt" </s>