What is the percentage of reviews added each year of the total reviews added?
review added each year refers to runs_at like '2021%' and runs_at like '2022%'; percentage for 2021 = Divide (Sum(reviews_added(runs_at like '2021%)), Sum(reviews_added)) * 100; percentage of 2022 = Divide (Sum(reviews_added(runs_at like '2022%')), Sum(reviews_added)) * 100
SELECT CAST((SUM(CASE WHEN run_at LIKE '2022-%' THEN reviews_added ELSE 0 END) - SUM(CASE WHEN run_at LIKE '2021-%' THEN reviews_added ELSE 0 END)) AS REAL) * 100 / SUM(reviews_added) OR '%' "percentage" FROM runs
database name:db_id music_platform_2
runs table runs Cols: run at dtype text, max row id dtype integer, reviews added dtype integer, 
podcasts table podcasts Cols: podcast id dtype text, itunes id dtype integer, slug dtype text, itunes url dtype text, title dtype text, 
reviews table reviews Cols: podcast id dtype text, title dtype text, content dtype text, rating dtype integer, author id dtype text, created at dtype text, 
categories table categories Cols: podcast id dtype text, category dtype text, 
