我有一个看起来像这样的表:+--------+----------+------+-----------+|make|model|year|avg_price|+--------+----------+------+-----------+|Subaru|Forester|2013|18533||Ford|F-150|2014|27284||Ford|F-150|2010|18296||Subaru|Forester|2012|16589||Ford|F-150|2013|25330||Ford|F-150|2011|20366||Subaru|Forester|2008|7256||