user: Question: What is Highest Number of Bearers 2008, when Surname is Jacobsen?
Columns: ['Rank', 'Surname', 'Number of bearers 2008', 'Type', 'Etymology']
Types: ['real', 'text', 'real', 'text', 'text']
Sample row: [1.0, 'Hansen', 56.228, 'patronymic', 'son of Hans']
SQL:

assistant: SELECT MAX("Number of bearers 2008") FROM "Table" WHERE "Surname" = 'Jacobsen';