user: Question: Which Density per km² is the lowest one that has a Number (map) smaller than 13, and an Area in km² of 11.1?
Columns: ['Number (map)', 'Borough', 'Population Canada 2011 Census', 'Area in km²', 'Density per km²']
Types: ['real', 'text', 'real', 'real', 'real']
Sample row: [1.0, 'Ahuntsic-Cartierville', 126891.0, 24.2, 5252.1]
SQL:

assistant: SELECT MIN("Density per km²") FROM "Table" WHERE "Number (map)" < 13.0 AND "Area in km²" = 11.1;