CREATE TABLE table_15929 ("County" TEXT, "English name" TEXT, "Irish name" TEXT, "Population" FLOAT, "Irish speakers" TEXT)

What is the population for the Irish Name Leitir meall in?
SELECT "Population" FROM table_15929 WHERE "Irish name" = 'Leitir Mealláin'
SELECT "Population" FROM "table_15929" WHERE "Irish name" = 'Leitir Mealláin'