Funso (Chichewa): Mtengo wapakatikati wa National Bank of Malawi pamene msika umatseka ndi uti?
Question (English): What is the average closing price of National Bank of Malawi?
Table: mse_daily (difficulty: easy)
SQL: SELECT AVG(close_price) FROM mse_daily WHERE company_name = 'National Bank of Malawi';
Result: [(2390.0983412322275,)]