user: Question: What is the Decile number for St Mary's Catholic School?
Columns: ['Name', 'Years', 'Gender', 'Area', 'Authority', 'Decile', 'Roll']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'real']
Sample row: ['Arohena School', '1–8', 'Coed', 'Te Awamutu', 'State', 6.0, 51.0]
SQL:

assistant: SELECT "Decile" FROM "Table" WHERE "Name" = 'St Mary''s Catholic School';