SELECT POSITION ,  avg(Points) FROM player GROUP BY POSITION
List the position of players and the average number of points of players of each position.
[Schema (values) (types)]: | sports_competition |  club : club_id (text) , name (number) , region (text) , start_year (text) | club_rank : rank (text) , club_id (number) , gold (text) , silver (text) , bronze (text) , total (number) | player : player_id (text) , name (number) , position (text) , club_id (text) , apps (text) , tries (number) , goals (number) , points (number) | competition : competition_id (text) , year (number) , competition_type (text) , country (text) | competition_result : competition_id (text) , club_id_1 (number) , club_id_2 (text) , score (text);