CREATE TABLE table_71700 ("Name" CLOB, "Years" CLOB, "Gender" CLOB, "Area" CLOB, "Authority" CLOB, "Decile" FLOAT, "Roll" FLOAT)

Name the sum of roll for morrinsville school
SELECT SUM("Roll") FROM table_71700 WHERE "Name" = 'morrinsville school'
SELECT SUM("Roll") FROM "table_71700" WHERE "Name" = 'morrinsville school'