Table:
text: 1975 Oakland Raiders season
Schedule
Schedule
Game Date_ Opponent Result_ Raiders_points Opponents Raiders_first_downs Record Attendance
9 Nov. 16 Cleveland Browns Win 38 17 22 7–2 50461
10 Nov. 23 at Washington Redskins Win 26 23 26 8–2 53582
11 Nov. 30 Atlanta Falcons Win 37 34 33 9–2 50860
12 Dec. 8 Denver Broncos Win 17 10 16 10–2 51075
13 Dec. 14 Houston Oilers Loss 26 27 23 10–3 50719

Question: How many different counts of Raiders first downs are there for game number 9 on the Oakland Raiders 1975 season schedule?