CREATE TABLE table_53154 ("Name" CLOB, "Years" CLOB, "Gender" CLOB, "Area" CLOB, "Authority" CLOB, "Decile" FLOAT, "Roll" FLOAT)

Name the most decile for roll of 428
SELECT MAX("Decile") FROM table_53154 WHERE "Roll" = '428'
SELECT MAX("Decile") FROM "table_53154" WHERE "Roll" = '428'