12.81 You are asked to develop a model to predict the change in the share of consumed energy stemming from renewable resources, using the data file Renewable Energy that contains the data for 26 European countries. The possible predictor variables are the change in the energy tax rates of households and firms, the share of renewable energy in 2004, average GDP/capita growth, population growth, and the share of environmentally minded households. Compute a multiple regression, and write a report on your findings.