How many episodes had the us viewers (millions) figure of 5.0?
CREATE TABLE table_21312959_1 (no_in_season VARCHAR, us_viewers__millions_ VARCHAR)
SELECT COUNT(no_in_season) FROM table_21312959_1 WHERE us_viewers__millions_ = "5.0"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_21312959_1 (no_in_season VARCHAR, us_viewers__millions_ VARCHAR) Question: How many episodes had the us viewers (millions) figure of 5.0? [/INST] SELECT COUNT(no_in_season) FROM table_21312959_1 WHERE us_viewers__millions_ = "5.0" </s>