user: Question: Name the minimum inhabitants for markatal 49
Columns: ['Municipality', 'Population', 'Inhabitants per km²', 'Area (in km²)', 'Markatal', 'Island', 'Region']
Types: ['text', 'text', 'real', 'real', 'real', 'text', 'text']
Sample row: ['Tórshavnar kommuna', '19.339', 112.0, 173.0, 327.0, 'Streymoy', 'Tórshavn']
SQL:

assistant: SELECT MIN("Inhabitants per km²") FROM "Table" WHERE "Markatal" = 49.0;