Funso (Chichewa): Kodi ndi makampani akuluakulu angati osiyanasiyana olembedwa mu kaundula wa Malawi Stock Exchange? 
Question (English): How many distinct companies are recorded in the Malawi Stock Exchange table?
Table: mse_daily (difficulty: medium)
SQL: SELECT COUNT(DISTINCT company_name) FROM mse_daily;
Result: [(16,)]