Show all opening years and the number of churches that opened in that year.
CREATE TABLE church (open_date VARCHAR)
SELECT open_date, COUNT(*) FROM church GROUP BY open_date
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE church (open_date VARCHAR) Question: Show all opening years and the number of churches that opened in that year. [/INST] SELECT open_date, COUNT(*) FROM church GROUP BY open_date </s>