user: Question: What was the lowest number of 2008 total bearers with a rank less than 13 and the Surname jansson?
Columns: ['Rank', 'Surname', 'Number of bearers 2008', 'Type', 'Etymology']
Types: ['real', 'text', 'real', 'text', 'text']
Sample row: [1.0, 'Johansson', 265.308, 'patronymic', 'son of Johan']
SQL:

assistant: SELECT MIN("Number of bearers 2008") FROM "Table" WHERE "Surname" = 'jansson' AND "Rank" < 13.0;