CREATE TABLE table_204_668 (id NUMBER, "#" NUMBER, "menteri besar" CLOB, "took office" CLOB, "left office" CLOB, "party" CLOB)

what is the number of menteri besar that served 4 or more years ?
SELECT COUNT("menteri besar") FROM table_204_668 WHERE "left office" - "took office" >= 4
SELECT COUNT("menteri besar") FROM "table_204_668" WHERE "left office" - "took office" >= 4