Write SQL query to solve given problem: How many users became an elite user the same year they joined Yelp?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT COUNT(T1.user_id) FROM Users AS T1 INNER JOIN Elite AS T2 ON T1.user_id = T2.user_id WHERE T1.user_yelping_since_year = T2.year_id