user: Question: List the population density per kilometer for the city of Abra de Ilog.
Columns: ['Municipality', 'No. of Barangays', 'Area (km²)', 'Population (2010)', 'Pop. density (per km²)', 'Income Class (2004)']
Types: ['text', 'real', 'text', 'real', 'text', 'text']
Sample row: ['Abra de Ilog', 9.0, '533.70', 29225.0, '41.6', '4th Class']
SQL:

assistant: SELECT "Pop. density (per km²)" FROM "Table" WHERE "Municipality" = 'Abra de Ilog';