CREATE TABLE table_8171 ("Tie no" TEXT, "Home team" TEXT, "Score" TEXT, "Away team" TEXT, "Attendance" TEXT)

What is the attendance of the match with maidsone united as the away team?
SELECT "Attendance" FROM table_8171 WHERE "Away team" = 'maidsone united'
SELECT "Attendance" FROM "table_8171" WHERE "Away team" = 'maidsone united'