14 last season, 8 the season before, 6 and 5 the two before that. You use the knee injuries as an excuse for him not scoring bagfuls but look at the great strikers of this league and how they did post injuries
Shearer - snapped ACL in Dec 1992, scored 31 the next season, ankle ligament damage in July 1997, first fully fit season scores 14 in the league
Owen - injury hit from April 1999 to May 2000, first fully fit season scores 16 in the league
Rooney - broken metatarsal in summer 04, scored 11 in his debut season for United, broke it again in April 06, scored 14 the following season
Van Nistelrooy - ruptured ACL in 2000 delaying move to United for a year, scores 23 in debut season