SANTIAGO, June 9 (Reuters) - Chile’s central bank said on Wednesday the economy would grow 8.5% to 9.5% in 2021, a greater expansion than previously predicted, buoyed by the injection of a fresh round of stimulus and the recent passage of a third withdrawal from private pension funds. The bank predicted average annual consumer prices in the world’s top copper producer would rise 3.9% in 2021, according to its Ipom quarterly economic report. (Reporting by Dave Sherwood and Fabian Cambero) Our Standards: The Thomson Reuters Trust Principles.