Table: t_1936_vfl_season_2
Columns: home_team
home_team_score
away_team
away_team_score
venue
crowd
date

Question: How many people attended the game that resulted in an away team score of 18.17 (125)?
SQL: SELECT SUM("crowd") FROM t_1936_vfl_season_2 WHERE "away_team_score" = '18.17 (125)'