Table:
text: 1987–88 Luton Town F.C. season
Match results
Football League First Division
Date_ Opponent Venue Result_ Attendance Scorers_
15 August 1987 Derby County Away 0–1 17204 —
18 August 1987 Coventry City Home 0–1 09380 —
22 August 1987 West Ham United Home 2–2 08073 Harford (2)
29 August 1987 Chelsea Away 0–3 16075 —
31 August 1987 Arsenal Home 1–1 08745 Wilson (pen)
5 September 1987 Oxford United Away 5–2 06804 Breacker, Harford, Hill, Nwajiobi, B. Stein
12 September 1987 Everton Home 2–1 08124 Hill, B. Stein
19 September 1987 Charlton Athletic Away 0–1 05002 —
26 September 1987 Queens Park Rangers Away 0–2 11175 —
3 October 1987 Manchester United Home 1–1 09137 Harford

Question: Does 15 August 1987 or 18 August 1987 have the most visitors in Luton Town FC 1987–88 season?