user: Question: What year was the expansion in the city of san juan?
Columns: ['Continent', 'Location', 'City', 'Date', 'Year']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['North America', 'United States', 'San Bernardino', 'May 15', 1940.0]
SQL:

assistant: SELECT "Year" FROM "Table" WHERE "City" = 'san juan';