CREATE TABLE table_22238 ("Candidates" TEXT, "Votes Khuzestan" FLOAT, "% of votes Khuzestan" TEXT, "Votes Nationally" FLOAT, "% of votes nationally" TEXT)

What was the percentage of national votes for Mahmoud Ahmadinejad?
SELECT "% of votes nationally" FROM table_22238 WHERE "Candidates" = 'Mahmoud Ahmadinejad'
SELECT "% of votes nationally" FROM "table_22238" WHERE "Candidates" = 'Mahmoud Ahmadinejad'