Question: Which season's average was 37.5?
SQL: SELECT "Season" FROM "2-15988037-18" WHERE "Average" = 37.5;

Question: How many ranks had marcin mroczek as the celebrity in a season more recent than 4?
SQL: SELECT COUNT("Rank") FROM "2-15988037-18" WHERE "Celebrity" = 'marcin mroczek' AND "Season" > 4.0;