Price for Buick Centurion

The selling prices for Buick Centurion cars have remained constant in the last 6 months. The average price in September was of $12,725. This price hardly went through any changes and remained at $12,113 during October. During the following two months (November, December) the average selling price rose somewhat going from $12,419 to $13,062. The average price has risen 5 % during the last two months. This result was obtained based on the price for the first four months (PRECIO1!) and the price ($13,429.5) during January and February.