user: Question: What State has an Opened (closing date if defunct) that shows 1960?
Columns: ['Name', 'Location', 'State', 'Opened (closing date if defunct)', 'Surface', 'Length']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Alaska Raceway Park', 'Palmer', 'Alaska', '1964', 'Concrete', 'miles (km)']
SQL:

assistant: SELECT "State" FROM "Table" WHERE "Opened (closing date if defunct)" = '1960';