CREATE TABLE torrents (groupname TEXT, totalsnatched DECIMAL, artist TEXT, groupyear DECIMAL, releasetype TEXT, groupid DECIMAL, id DECIMAL)
CREATE TABLE tags (index DECIMAL, id DECIMAL, tag TEXT)

Which year had the minimum number of releases?
SELECT groupyear FROM torrents GROUP BY groupyear ORDER BY COUNT(groupname) LIMIT 1
SELECT "groupyear" FROM "torrents" GROUP BY "groupyear" ORDER BY COUNT("groupname") NULLS FIRST LIMIT 1