What is the total number of Rolls of State schools in Hapuku with a Decile greater than 4?
CREATE TABLE "kaikoura_district" (
  "name" text,
  "years" text,
  "gender" text,
  "area" text,
  "authority" text,
  "decile" real,
  "roll" real
);
SELECT COUNT("roll") FROM "kaikoura_district" WHERE "authority"='state' AND "area"='hapuku' AND "decile">4;