CREATE TABLE table_19177 ("Home  ( 1st leg ) " TEXT, "Home  ( 2nd leg ) " TEXT, "1st Leg" TEXT, "2nd leg" TEXT, "Aggregate" TEXT)

When altos hornos zapla is the home (1st leg) what is overall amount of 1st leg?
SELECT COUNT("1st Leg") FROM table_19177 WHERE "Home (1st leg)" = 'Altos Hornos Zapla'
SELECT COUNT("1st Leg") FROM "table_19177" WHERE "Home (1st leg)" = 'Altos Hornos Zapla'