CREATE TABLE table_57437 ("Name" TEXT, "Years" TEXT, "Area" TEXT, "Authority" TEXT, "Decile" TEXT, "Roll" FLOAT)

What is the decile for Westminster Christian School with a state integrated authority?
SELECT "Decile" FROM table_57437 WHERE "Authority" = 'state integrated' AND "Name" = 'westminster christian school'
SELECT "Decile" FROM "table_57437" WHERE "Authority" = 'state integrated' AND "Name" = 'westminster christian school'