user: Question: What is the highest value for map number?
Columns: ['Map number', 'English name', 'Finnish name', 'Swedish name', 'Residence city', 'Dates of existence', 'Notes']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [14.0, 'Province of Nyland and Tavastehus', 'Uudenmaan ja Hämeen lääni', 'Nylands och Tavastehus län', 'Helsinki / Hämeenlinna', '1634–1831', '• one of the original provinces formed in 1634']
SQL:

assistant: SELECT MAX("Map number") FROM "Table";