CREATE TABLE table_203_528 (id NUMBER, "year" NUMBER, "political rights" NUMBER, "civil liberties" NUMBER, "status" CLOB, "president" CLOB)

how many years was ali saibou president ?
SELECT COUNT("year") FROM table_203_528 WHERE "president" = 'ali saibou'
SELECT COUNT("year") FROM "table_203_528" WHERE "president" = 'ali saibou'