user: Question: Tell me the average population with foreign nationals in % of 27,3%
Columns: ['City district (Stadtteil)', 'Area in km²', 'Population', 'Foreign nationals', 'Foreign nationals in %']
Types: ['text', 'text', 'real', 'real', 'text']
Sample row: ['Altstadt', '0,51 km²', 3.475, 1.122, '32,3%']
SQL:

assistant: SELECT AVG("Population") FROM "Table" WHERE "Foreign nationals in %" = '27,3%';