Funso (Chichewa): Ndi maboma ati omwe ali ndi mtengo wapakati wa chimanga woposa wa dziko lonse?
Question (English): Which districts have an average maize price higher than the national average?
Table: commodity_prices (difficulty: hard)
SQL: SELECT district FROM commodity_prices WHERE commodity = 'Maize' GROUP BY district HAVING AVG(price) > (SELECT AVG(price) FROM commodity_prices WHERE commodity = 'Maize');
Result: [('Balaka',), ('Blantyre',), ('Chiradzulu',), ('Machinga',), ('Mangochi',), ('Mwanza',), ('Neno',), ('Nkhata Bay',), ('Nkhotakota',), ('Nsanje',), ('Rumphi',), ('Salima',), ('Thyolo',), ('Zomba',)]