CREATE TABLE table_41317 ("Tie no" TEXT, "Home team" TEXT, "Score" TEXT, "Away team" TEXT, "Attendance" FLOAT)

What was the attendance at the West Ham United home game?
SELECT "Attendance" FROM table_41317 WHERE "Home team" = 'west ham united'
SELECT "Attendance" FROM "table_41317" WHERE "Home team" = 'west ham united'